Let x be the number of hours ,8 boys take to do the work

So , 10 : 8 :: 12 : x

Product of means = Product of extremes

10x = 12 * 8

10x = 96

x = 96 / 10

x = 9.6

Answer : 8 boys will take 9.6 hours to dig the pitch.

Hope u understood the concept,

Thumps up plz........

-1

Sayantani answered this

10 boys dig pitch in = 12h

1 " " " " = 12 X 10

8 " " " " = 12 X 10/8

=120/8

=15 Hours.

3

Yash Jha answered this

time taken for 10 boys to do it = 12 hrs.

10 boys take 12hrs. so 1 boy will take more time

1 boy = 10 x 12 = 120

So, 8 boys will take = 120/8 = 15 hrs

0

Aryan Wadkar answered this

guys why is propotion so confusing ?

0

David John answered this

I REVIEWED ALL THE ANSWERS. IF TEN BOYS TAKE 12 HRS. HOW CAN 8 BOYS TAKE 15 HRS. DID YOU MENTION THAT THESE BOYS WERE LAZY. IF THEY WERE, THE ANSWER IS CORRECT.

1

Sonalcasey answered this

@david p john

there is a solution for every problem

hehhe

1

007 Abhi answered this

10boy=12hrs

8boys=(12/10)*8=9.6hrs

1

Sonalcasey answered this

if 10 boyz take 12 hrs

then 1 boy would take 1.2 hrs

so 1.2 multiplied by 8 = 9.6

result = therfore 8 boys would take 9.6 hrs

hope so it would help :D

1

Shrey answered this

time take for 10 boys to do it =12hrs 10 boys taken 12hrs ,SO 1 BOY WILL TAKE MORE TIME 1 BOY = 10 MULTIPLIED BY 12 =120 SO 8 BOYS WILL TAKE=12/8=15HRS