Question

3. How many kilograms of sugar worth 7 3.60 per kg
should be mixed with 8 kg of sugar worth 3 4.20
per kg, such that by selling the mixture at * 4.40 per
kg, there may be a gain of 10%?
(b) 3 kg
(d) 4 kg
(a) 6 kg
(c) 2 kg
11


How is it 100/110 in the solution?

Answer 1

Answer:

d) 4kg

Selling price per kg = Rs.4.40

gain 10%

Cost price = 4.40×1001104.40×100110 = Rs.4 per kg.

Applying law of mixture I : II = 4.20 - 4 : 4.00 - 3.60

= 20 : 40 = 1 : 2

Let the I typIe quantity be x.

x : 8 :: 1 : 2

2x = 8

x = 4

Quantity of I type = 4 kg.