Question

2. 7 men and 8 boys can do a piece of work in
2 days. 4 men and 12 boys can do 29/56 of the
same work in 1 day. In how many days will
1 man do this work?
(a) 24 days
eled (b) 25 days
(c) 27 days
(d) 28 days​

Answer 1

Answer:

if you have any problem in understanding step then comment please

because it would take too long to write in detail.

Step-by-step explanation:

7m + 8b =1/2. work in a day-------(1)

4m + 12b=29/56. work in a day-------(2)

Multiply equation (1) by 12

Multiply equation (2) by 8

I. e, 84m + 96 b =6-

32m + 96 b =(29/7)

--------------------------

52m. =(13/7)

m =(13/7) = 1

--------- ----- work in a day

52. 28

A man can do work in 28 days

hope i get a thanks

Answer 2

Step-by-step explanation:

7m+8b=1/2. work in a day

-4m+12b=29/56

.work in a day-

Multiply equation (1) by 12

Multiply equation (2) by 8

I.e 84m+96b=6- 32m+96b=(29/7)

- 52m.=(13/7) m=(13/7)=1 - 52.28

A man can do work in 28 days