A person has a chemical of Rs 25 per litre In what ratio should water be mixed in that chemical so t...........

Quantitative Aptitude ( CCS) Mixture and Alligation

A person has a chemical of Rs. 25 per litre. In what ratio should water be mixed in that chemical, so that after selling the mixture at Rs. 20 per litre he may get a profit of 25%?

9 : 15

10 : 13

16 : 9

15 : 22

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Explanation:

Selling price of mixture = Rs. 20
Cost price of mixture = (100/125)*20 = Rs.16
Rule of mixture
25————-0
——–16
16————-9
So, the required ratio = 16 : 9

Hence, opiton 3 is the correct answer.

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