Question

5 men and 12 boys finish a piece of work in 4 days, 7 men and 6 boys do it in 5 days. the ratio between the efficiencies of a man and boy is?

Answer 1

please mark it as a brainliest answer

Answer 2

The ratio between the efficiencies of a man and boy is $\frac{6}{5}$.

Step-by-step explanation:

Given:

5 men and 12 boys finish a piece of work in 4 days, 7 men and 6 boys do it in 5 days. the ratio between the efficiencies of a man and boy is?

Solution:

Let men be m and boys be b

(5m + 12b) takes 4 days

(7m + 6b) takes 5 days

(5m + 12b) 4 = (7m + 6b) 5

20m + 48b = 35m + 30 b

15m = 18b

$\frac{M}{b} = \frac{6}{5}$

To know more:

Men and 6 Boys can finish a piece of work in 5 Days , While 3 Men and 4 Boys can Finish it in 7 days . Find the time taken by 1 man alone or that by 1 boy alone ?

https://brainly.in/question/4117743