Question : 63 men can complete a work in 30 days. In how many days 21 men will do the same work?
Option 1: 70 days
Option 2: 85 days
Option 3: 90 days
Option 4: 88 days
Answer (1)
17th Jan, 2024
Correct Answer: 90 days
Solution :
Here $M_1=63,M_2=21,$ and $D_1=30$
We know, $M_1 ×D_1=M_2 ×D_2$
$⇒63 × 30 = 21 ×D_2$
$\therefore D_2=90$
Hence, the correct answer is 90 days.
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