4 men or 5 Women can do a work in 30 days. If 2 men and 10 Women work together, how long will they take to complete the work ?

4 men or 5 Women can do a work in 30 days. If 2 men and 10 Women work together, how long will they take to complete the work ?

A 10

B 12

C 15

D none

Correct Answer: Option B

দেওয়া আছে, 5 Women = 4 men

10 " = 8 men

আমরা পাই, 2 men + 10 women = 2 men + 8 men = 10 men.

4 men কাজটি করে 30 দিনে

1 men কাজটি করে 30 × 4 দিনে

10 men = (30 × 4) / 10 = 12 দিনে ।