20) A construction company has 20 workers who can make a residential house for 120 days.
How many workers is needed to finish the house for 90 days?
A 16 men
B 24 men
C. 27 men
D. 28 men
How many workers is needed to finish the house for 90 days?
A 16 men
B 24 men
C. 27 men
D. 28 men
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24 men
20 workers ÷ 120 days
= 6 which means each worker has 6 days each.
if we add 5 more workers then,
(5 workers) ( 6 days per worker)
=30
120 days - 30 days
=90 days
the work will be 30 days faster if we add 5 more workers.
but the choices don't have 25 so let's choose the closes to it so the answer is 24 men
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