⁞ Chain Rule
Aptitude ➤ Chain Rule ➤ 1
Question 1
Q1. If 20 men can build a wall 56 metres long in 6 days, what lenght of a similar wall can be built by 35 men in 3 days ?
Answer : 49 m
Let the required lenght be x metres. Then ,
∴ 20 × 6 × x = 35 × 3 × 56
⇒ x = (35 × 3 × 56)/120 = 49
Hence, the required lenght is 49 m.
⚔ DISCUSS
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