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#1 - Yahoo Logical Mathematics Interview Question

Difficulty Popularity

Suppose that you are building a tower using play bricks. A white brick is 19 mm tall whereas a black brick is 21 mm tall.

If you want to build a tower 562 mm tall, how many of each will be required?

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#2 - Hard Yahoo Logical Mathematics Interview Question

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In an old town, there lived a pot maker who wanted to sell the last stock of his craft to a merchant. When the merchant asked him how many pots he had, he replied that he was unable to count after 100. But he gave him certain clues to figure out for himself:

If the number of pots are divided by two, there will be one left.
If they are divided by three, there will be one left.
If they are divided by four, there will be one left.
If they are divided by five, there will be one left.
If they are divided by six, there will be one left.
If they are divided by seven, there will be one left.
If they are divided by eight, there will be one left.
If they are divided by nine, there will be one left.
If they are divided by ten, there will be one left.
But if they are divided by eleven, there will be no pot left.

Can you find the number of pots, the pot maker possess?

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#3 - Popular Time Work Interview Puzzle

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Two men and seven women complete a file work in four days. Four men and 4 women complete the same file work in just 3 days.

How much time will one man take to complete the same file work?

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#4 - Intel Clock Interview Question

Difficulty Popularity

Can you find out the angle between the minute hand and the hour hand at 3:15 on an analog clock? Think hard and then come to a conclusion.

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#5 - NetApp Interview Tricky Probability Puzzle

Difficulty Popularity

What is the probability that two friends have their birthday in the same month?

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#6 - Morgan Stanley Series Interview Question

Difficulty Popularity

Find the next term in the series
1, 2, 4, 10, 16, 40, 64, __?

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#7 - Tricky Age Interview Question

Difficulty Popularity

When Peter married 10 years ago, his wife was the sixth member of his family. Today his father dies and a baby was born to him. The average age of his family during his marriage is the same as it is now.

Can you calculate the age when his father died?

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#8 - Yahoo Interview Tricky Question

Difficulty Popularity

Select any four numbers out of the following such that the sum is twelve.

1 6 1
6 1 6
1 6 1
6 1 6

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#9 - Yahoo Tricky Series Interview Question

Difficulty Popularity

Find the next term in the series

1, 3/2, 5/4, 7/8, __?

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#10 - Distance and Speed Interview Question

Difficulty Popularity

Peter travels 20 km a day uniformly. John starts from the same point peter started after three days. He travels at a speed of 15 km a day on the first day, at 19 km a day of the second day and so on following an arithmetic progression.

In how many days will he catch up with Peter?

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