Answers

2015-08-05T15:17:01+05:30
Two workers construct a wall in four days
Four workers construct the same wall in ? days?

As the no. of workers doubled, the no. of days it takes to construct should be halved.

That means, they construct the wall in 2 days.
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2015-08-05T15:38:39+05:30
2 days as in the next situation workers are double than the first time
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