16. A group of 40 workers can build 20 sheds in 2 hours. Assuming they work at the same
rate, how many hours will 5 workers take to build 10 sheds.
A.12
B.4
C. 16
D.8
Answers
Answered by
26
Process :-
Workers. Sheds Hours
40. 20. 2
5. 10. ? =x(let)
Now
No of workers Is inversely proportional to hours and no. Of sheds is directly proportional to the hours......
Therefore
x=2*(40/5)*(10/20)
=2*8/2
= 8 hours
ANSWER
5 workers will take 8 hours per day to build 10 sheds.
Answered by
13
Answer:
option 'c' that is 8 hours
Step-by-step explanation:
no. of workers is inversely proportional to the time.
if 40 workers built 20 sheds in 2 hours, then 5 workers will take 2× (40/5) hours to make 20 sheds.
that is 16 hours.
and to make 10 sheds, the time taken will be 16/(20÷10) hours.
that is 16÷2 hours.
so answer is 8 hours.
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