15 men can complete a task in 10 days. In how many days can 20 men complete the same task?5.5 days
A5.5 days
B7.5 days
C6.5 days
D8.5 days
Answer:
B. 7.5 days
Read Explanation:
Solution:
Given:
15 men can complete a task in 10 days.
Formula:
M1 × D1 = M2 × D2
Calculation:
M1 = 15, D1 = 10 and M2 = 20
According to the formual
15 × 10 = 20 × D2
⇒ D2 = 150/20
⇒ D2 = 7.5 days
∴ 20 men can complete the same task in 7.5 days.