Question

4 men or 6 boys or 8 girls can perform a piece of work in 15 days. How much time 9 men, 12
boys and 8 girls take to do the same work?​

Answer 1

Answer:

20/7 Days

Step-by-step explanation:

Step 1:

According to question,

4 men = 6 boys = 8 girls

4 men = 6 boys

4 men = 8 girls

Step 2:

9 men+12 boys+8 girls=(9+8+4)= 21 men

Step 3:

4 men can do a piece of work in 15 days

21 men can do a piece of work in

=(15*4)/21

=20/7days