Question

Fifteen men take 30 days to complete a piece
work, working 8 h a day. Find the time taken by
30 men to complete 5 times as much work, work
ing 10 h a day.
(a) 30 days
(b) 45 days
(c) 60 days
(d) 15 days​

Answer 1

Answer:

According to me the correct answer is 15 .

but if we carefully solve it the answer is 12 day

Answer 2

Answer:

60 days

use formula , m1d1h1/w1