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Multiple Choice Questions

How many kg of custard powder costing Rs 42 per kg must be mixed with 16 kg of custard powder costin...........

Quantitative Aptitude (RBI Grade B) Mixture and Alligation

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?

11 kg

14 kg

12 kg

20 kg

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Explanation:

SP = 60. Gain= 20%.

CP = (100/120) x 60.

CP = 50.
Ratio between the 2 varieties of custard powder = 60 – 50 : 50 –42 = 10 : 8.

if x is the required quantity then 10 : 8 = x : 16 ⇒ x =20 kg.

Hence, option 4 is the correct answer.

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How many kg of custard powder costing Rs 42 per kg must be mixed with 16 kg of custard powder costin...........

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