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BlackRock
Portfolio Management Group-Fixed Income Analyst was asked...November 21, 2010

You have a birthday cake and have exactly 3 slices to cut it into 8 equal pieces. How do you do it?

39 Answers

Assuming the cake is square: slice 1: cut horizontally to create 2 equal pieces slice 2: cut vertically to create 4 equal pieces slice 3: line up all 4 pieces of cake side by side and cut horizontally to create 8 equal pieces. don't stack, it will ruin the frosting. Less

Cut each slice into 3 slices. Then eat one of them.

Slice it horizontally across the middle creating two equal halves top and bottom. Then simple two slice cross from above like normal. Less

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FabSoft

How did you design a performance management system? And was it successful? Why or why not?

37 Answers

Sorry, I didn't mean to vote this comment down; It was a mistake and can only vote once. Thanks Less

Greetings to every one that is reading this testimony. I had been rejected by my husband after five(5) years of marriage just because another woman had cast a spell on him and he left me with 2 kids to suffer. One day when i was reading through the web, i saw a post on how he help a woman to get back her husband and i gave him a chance he told me that my husband is under spell, he said that he will help me and after 7 days that i will have my husband back. i believed he and today i am glad to let you all know that this spell caster has the power to bring lovers back now my husband is back with after 7 days . he also gave me a financial magic ring to boost my business and removed bad luck. i am now happy with my husband. Thanks you Dr. love please contact him at (lovespelldoctor0@gmail. com) Less

GREAT LOVE SPELL CASTER PRIEST WISDOM THAT HELP ME SAVE MY RELATIONSHIP.TEXT OR ADD HIM UP ON WHATSAPP: +2348124644470 My name is CLARA JAMES .i want to give thanks to PRIEST WISDOM for bringing back my ex husband.No one could have ever made me believe that the letter I’m about to write would actually one day be written. I was the world’s biggest skeptic. I never believed in magic spells or anything like this, but I was told by a reliable source (a very close co-worker) that Trust is a very dedicated, gifted, and talented person,It was one of the best things I have ever done. My love life was in shambles; I had been through two divorces and was on the brink of a third. I just couldn't face another divorce, and I wanted to try harder to make our relationship work, but my husband didn’t seem to care. and he broke up with me again.I was confused and did not know what to do again,rather they got in contact with PRIEST WISDOM . He did a love spell that made my husband come back to me. We are now very much happy with ourselves. PRIEST WISDOM makes him realize how much we love and need each other.This man is for REAL and for good.he can also help you to fix your broken relationship. I had my husband back! It was like a miracle! He suddenly wanted to go to marriage counseling, and we’re doing very, very well,in our love life.contact email Supernaturalspell1@ gmail. com text or add him up on whatsApp at: +2348124644470 Less

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Apple

You have a 100 coins laying flat on a table, each with a head side and a tail side. 10 of them are heads up, 90 are tails up. You can't feel, see or in any other way find out which side is up. Split the coins into two piles such that there are the same number of heads in each pile.

37 Answers

Split into two piles, one with 90 coins and the other with 10. Flip over every coin in the pile with 10 coins. Less

Pick 10 coins from the original 100 and put them in a separate pile. Then flip those 10 coins over. The two piles are now guaranteed to have the same number of heads. For a general solution of N heads and a total of M coins: 1.) Pick any N coins out of the original group and form a second pile. 2.) Flip the new pile of N coins over. Done. Example (N=2, M=6): Original group is HHTTTT (mixed randomly). Pick any two of these and flip them over. There are only three possible scenarios: 1: The two coins you picked are both tails. New groups are {HHTT} {TT} and when you flip the 2nd group you have {HHTT} and {HH}. 2.) The two coins you picked consist of one head and one tail. New groups are {HTTT} and {HT} and when you flip the 2nd group you have {HTTT} and {TH}. 3.) The two coins you picked are both heads. New groups are {TTTT} and {HH} and when you flip the 2nd group you have {TTTT} and {TT}. Less

reading these answers is such a confidence builder.

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How would you handle a situation where you have a client who interrupt your existing interaction with a client?

13 Answers

I politely tell the client who interrupted to please standby and that I will be able to answer their questions/handle their issues shortly. If they need immediate attention I will call a member of the team to assist. Less

I apologize and ask him or her to please step in line and I’ll be right with them. If they interrupt I say understand completely and look for a manager. If there isn’t one available, I’d ask for the source of their urgency. If it’s just them being difficult without an interest in telling me their issue I’d tell them I’ll be with them shortly, I just have to help another customer. Really it helps to keep things short and simple, moving along as quickly as possible with other tasks at hand. Less

Jessica Cross

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MediaMath

Explain reasonable accommodation in regards to the ADA.

21 Answers

Hello am here to testify of a great and powerful spell caster. my Wife left me and my two kids for a couple months, I tried to beg her even I called her, she didn't pick up when she came back home the 3rd week she told me she wanted a divorce I was so sad I cried all night he left again I was so lonely the next day I was searching for something online when i found a spell caster called DR ODUDUWA, who have helped so many people with their various issues and problems, so I contacted him with my problems he told me it will take 24hrs and my Wife will be back to me I did everything he told me to do and the next day very early my wife came back kneeling and begging she canceled the divorce we are now happy together all thanks to DR ODUDUWA he also cure HIV/AIDS HEPATITIS. LOW SPERM COUNT. CANCER DISEASES. FIBROID DISEASES. GONORRHEA FALLOPIAN TUBE. PREGNANCY. HIGH BLOOD PRESSURE HERPES lottery spell...he can also help you too, contact him directly if you need his assistance on EMAIL....droduduwa2@ gmail.com or whatsapp him +2349019861336 Less

Hello am here to testify of a great and powerful spell caster. my Wife left me and my two kids for a couple months, I tried to beg her even I called her, she didn't pick up when she came back home the 3rd week she told me she wanted a divorce I was so sad I cried all night he left again I was so lonely the next day I was searching for something online when i found a spell caster called DR ODUDUWA, who have helped so many people with their various issues and problems, so I contacted him with my problems he told me it will take 24hrs and my Wife will be back to me I did everything he told me to do and the next day very early my wife came back kneeling and begging she canceled the divorce we are now happy together all thanks to DR ODUDUWA he also cure HIV/AIDS,HEPATITIS,LOW SPERM COUNT,CANCER DISEASES,FIBROID DISEASES,GONORRHEA,GONORRHEA,FALLOPIAN TUBE,PREGNANCY,HERPES,lottery spell. he can also help you too, contact him directly if you need his assistance on EMAIL....droduduwa2@ gmail.com or whatsapp him +2349019861336 Less

Love spell doctor has brought my husband back to me after 6 months of separation. My husband left me and wanted a divorce because of a young girl who is young enough to be her daughter. Your love spell has reunited my family once again after mourning and tears that I am now a single mom, but my teas has turn to Joy with your amazing return lover spell. I am grateful for everything. Anyone experiencing heartbreak and needs their lover back should contact lovespelldoctor0@gmail. com and that will be the end of your problems in that relationship. Less

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Bloomberg L.P.

An array of 99 elements contains integers from 1 to 100 with one missing element. Find the missing element.

20 Answers

1. calculate the sum of elements in array say SUM 2. sum of numbers 1 to 100 is(n* (n+1))/2 = 5050 when n==100 3. missing element is (5050-SUM) Less

Sum them and then subtract them from 5050. In general, if an array of size n - 1 elements has unique elements from 1 to n, then the missing element can be found by subtracting the sum of the elements in the array from sum(1 ... n) = n * (n + 1) / 2. Alternately, one could use a boolean array of length n with all values set to false and then for each value, set array[val - 1] to true. To find the missing value, scan through the array and find the index which is set to false. Return index + 1. This requires O(n) memory and two passes over an O(n) array (instead of constant memory and one pass), but has the advantage of actually allowing you to verify whether or not the input was well formed. Less

Read the question. Here are the steps to solve it: 1) find the sum of integers 1 to 100 2) subtract the sum of the 99 members of your set 3) the result is your missing element! Very satisfying! Less

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LinkedIn

Find the second largest element in a Binary Search Tree

15 Answers

The above answer is also wrong; Node findSceondLargest(Node root) { // If tree is null or is single node only, return null (no second largest) if (root==null || (root.left==null && root.right==null)) return null; Node parent = null, child = root; // find the right most child while (child.right!=null) { parent = child; child = child.right; } // if the right most child has no left child, then it's parent is second largest if (child.left==null) return parent; // otherwise, return left child's rightmost child as second largest child = child.left; while (child.right!=null) child = child.right; return child; } Less

find the right most element. If this is a right node with no children, return its parent. if this is not, return the largest element of its left child. Less

One addition is the situation where the tree has no right branch (root is largest). In this special case, it does not have a parent. So it's better to keep track of parent and current pointers, if different, the original method by the candidate works well, if the same (which means the root situation), find the largest of its left branch. Less

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Amazon

The manager of component 'A' says his functionality is more important than that of component 'B.' The manager of component 'B' says his is more important than that of component 'A.' You can only implement one A or B, but not both - which do you choose to implement.

14 Answers

The key question to ask is definition of "IMPORTANT". Is it important to the managers (ego equation), important to the end consumer or important for Amazon. The first one needs to be thrown out immediately and the others must be quantified based on achievability, impact on end user and ROI. Less

I would say whichever is more valuable to customer & gives competitive advantage to Amazon. Less

In addition to the above suggestions, I would look at cost and time to market and then score both options. Then define value metrics. The cheapest and most valuable either as a technology sustainer or for customer wins. Given that it's Amazon, customer value will hold up the highest as one of their corporate culture virtues. Less

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Medtronic

You are in a boat in a pool with a rock in your hand. You throw the rock into the pool. Does the water level rise, drop, or stay the same?

13 Answers

If the rock were neutrally buoyant the water level would remain the same. It is heavier than water which causes it to displace more than its own volume while in the boat compared to at the bottom of the lake. Therefore the water level of the lake would go down. Less

These answers are troubling. The only correct answer so far is Ben. The water level goes down. Less

The weight of the boat plus you plus the rock has already displaced the height of the water. The only time the water level will change will be when the rock is mid air. Less

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Wayfair

50,000 shoppers with a 0.5% conversion rate for a chair that costs $250. Wayfair makes a 27% profit. Next, 50,000 shoppers will get a 10% discount. What is the conversion rate they must achieve to achieve the same profits as before?

13 Answers

This is incorrect Old revenue = 50000*250*.005=250*250 New revenue with conversion rate r% = 50000*r*250*.9 = old revenue = 250*250 r = .55% Less

July 9 is wrong because the profit margin changes(As sale price changes, but the cost doesn't change) Less

The new conversion rate is 0.944, Profit from case 2 = $16,875 and the third part, if this scenario actually occurred I would give a 10% discount (with the new conversion rate .944%) because the overall profit margin would remain same i.e. $16,875 Less

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