IAS Interview Question

If it took eight men ten hours to build a wall, how long would it take four men to build it?




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The measurement of time, That can't be found on a clock, But can be looked upon on a map.

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* *
x *
=====
* * *

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Can you find the least possible number such that

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It has five wheels, though often think four, You cannot use it without that one more, You can put things in it, you can strap things on top, You can't find it in the market, but you can still go shop. What is it?

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Gamers

In 2011, people playing Foldit, an online puzzle game about protein folding, resolved the structure of an enzyme that causes an Aids-like disease in monkeys. Researchers had been working on the problem for 13 years. The gamers solved it in three weeks.