Question

How many kg of custard powder costing Rs. 42 per kg must be mixed with 16 kg of custard powder costing Rs. 60 per kg so that 20 % may be gained by selling the mixture at Rs. 60 per kg?

Answer 1

Step-by-step explanation:

Given How many kg of custard powder costing Rs. 42 per kg must be mixed with 16 kg of custard powder costing Rs. 60 per kg so that 20 % may be gained by selling the mixture at Rs. 60 per kg?

• Given Selling price is Rs 60 for 1 kg
• Also profit or gain is 20%
• So cost price = S.P x 100 / 100 + profit percent
•                     = 60 x 100 / 100 + 20
•                    = 6000 / 120
•                      = 50
• So the ratio of custard powder will be 60 – 50 = 10 and 50 – 42 = 8
•  So it will be 10:8
• Now if p is the quantity of custard powder to be mixed we have
•        10:8 = p :16
•        10/8 = p/16
•       8p = 160
•      Or p = 160 / 8
•      Or p = 20 kg

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https://brainly.in/question/10414397