Arithmetic Aptitude Time and Work

• A 5
• B 7
• C 4
• D 10
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C

Answer: C

If the work rate of one man is represented by 'x' and the work rate of one boy is represented by 'y',
the work rates of 6 men and 8 boys can be represented as
6x + 8y = 1/10.
Similarly, the work rates of 26 men and 48 boys can be represented as
26x + 48y = 1/2.
Solving these equations,
we find that the work rate of one man is 1/100 of the task per day and the work rate of one boy is 1/200 of the task per day.
Therefore, 15 men and 20 boys can complete the task in 4 days

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