CMAT 2020 Solved Question Paper

The work done by
Man : Woman : Child = 3 : 2 : 1
∴ 15M+21W+30C =15×3C+21×2C+30C
=45C+42C+30C
=117C
And, 20M+30W+36C =20×3C+30×2C+36C
=60C+60C+36C
=156C
It is given that,
(20 men + 30 women + 36 children)
= 156 children earn ₹ 78 per day
∴ 1 child earn ₹

78

156

per day =₹

1

2

∴ 15 men + 21 women + 30 children = 117 children
∴ 117 children earn ₹

1

3

×117 per day
i.e., (

1

2

×117×18×7) earn in 18 weeks =₹7371