Question: Either 6 men or 17 women can paint a wall in 33 days. The number of days required to paint three such walls by 12 men and 32 women
working at same rate?
21.2
25.5
26.2
26.7
Answers
Answered by
5
Answer:
8 men ≡ 17 women
⇒ 12 men ≡
17
× 12
8
=
51
women
2
∴ 12 men + 24 women
=
51
+ 24 =
99
women
2 2
By
M1D1
=
M2D2
W1 W2
=
17 × 33
=
99 × D2
1 2 × 3
⇒ D2 =
17 × 33 × 6
= 34 days
99
Aliter : Using Rule 12,
Here, A = 8, B = 17, a = 33
A1 = 12, B1 = 24
Number of days=
a(A × B)
A1B + B1A
=
33(8 × 17)
12 × 17 + 24 × 8
=
4488
396
No. of days to paint 3 houses
=
4488
× 3 = 34 days
396
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