Question

6 girls can paint a canvas in 16 hours. In how many hours will 8 girls take to complete painting a canvas? 

1. 12 hours
2. 10 hours
3. 8 hours
4. 6 hours

Answer 1

Correct Answer - Option 1 : 12 hours

Given:

M­₁ = 6

M₂ = 8

T₁ = 16 hours

T₂ = ?

W₁ = W₂ = 1

Formula Used:

M₁T₁W₂ = M₂T₂W₁

Calculation:

M₁T₁W₂ = M₂T₂W₁

⇒ 6 × 16 × 1 = 8 × T₂ × 1

⇒ T₂ = 6 × 16/8

⇒ T₂ = 12 hours

∴ 8 girls take 12 hours to complete painting a canvas.