Question

2 people and 7 boys can do a job in 14 days, 3 people and 8 boys can do that job in 11 days.How much time will it take for 8 people and 6 boys ?​

Answer 1

Answer:

21 days

Step-by-step explanation:

2 men working 14 days is 28 man-days ( of work )and 7 boys working 14 days is 98 boy-days.

3 men working 11 days is 33 man-days and 8 boys working 11 days is 88 boy-days.

(1.) and (2.) do the same amount of work i.e. 14md+7bd=33md+88bd

from (3) we get that 1 md = 2 bd … or 1 man = 2 boys

so the amount of work is 28(2d)+98 bd=154 boy-days

3 times more work is 3 x 154 =462 boy-days of work

X= number of days : ( 8 men) (X) + (6 boys )(X) =462

(8)(2)(X)+6X=22X=462 : 21 days

Hope it helps you

Answer 2

Answer:

21 days

Explanation:

Mark my answer as Brainliest.