Question

2 men and 7 boys can do a piece of work in 14 days, 3 men and 8 boys can do the same in 11 days. in how many days, 3 times the work can be completed by 8 men and 6 boys?​

Answer 1

Answer:

yes janu I know

Step-by-step explanation:

A) 21 days

Description for Correct answer:

Let one man’s one day work be x

Let one boy’s one day work be y

2x+7y=1/14 ... (1)

3x + 8y = 1 /11 ... (2)

Equating (1) & (2), x = 1 / 77 and y = 1/ 154

Hence, the days taken to complete by 8 men and 6 boys

= [8(177)+6(1154)][8(177)+6(1154)]

=16+6154=22154=17=716+6154=22154=17=7days

3 times the work can be completed by 8 men and 6 boys = 3 x 7 = 21 days.

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