Question

If the work done by 8 men and 4 boys in 1 day is 7 times the work done by 1 man and 1 boy, then compare the work done by 1 man and 1 boy in 1 day? ​

Answer 1

Here, a1 =8,b1=4, a2 =1, b2=1

and n = 7 ,

Work done by 1 manWork done by 1boy=(nb2−b1)(a1−na2)

=7×1−48−7×1=31