30 men cut 50 trees in 10 h. If 10 men leave the job, how many trees will be cut in 15 h?
Show answer & explanation
Correct answer: A
Explanation
The correct answer is Option 1 i.e. 50.
We know that,
(M1 × D1 × H1)/W1 = (M2 × D2 × H2)/W2
where, M = Men, D = Days, H = hours, and W = work done
Now, according to the question
Let, the number of trees cut be T
⇒ (30 × 10)/50 = ((30 - 10) × 15)/T
⇒ 300/50 = (20 × 15)/T
⇒ T = ((20 × 15) × 50)/300
⇒ T = 50
Hence, the number of trees cut is 50