exam Maths Puzzle Numerical Ability

If 6 men can do a piece of work in 14 days, how many men are needed to do the same work in 21 days?

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exam Other Question

The management of a company that manufacturers roller skates haas a fixed costs of $300.00 per day and a total costs of $4,300 per day at an output of 100 pairs of skates a day. A Place any 16 positive integers(using no integer more than once) into a 4x4 square so that the sum of the 4 numbers of each row or column equals 44.