What ratio must water be mixed with milk costing Rs 10 per liter to buy to get a mixture worth of Rs 4 per liter pick best possible option 2 3 2 1?

Exercise :: Alligation or Mixture - General Questions

11.

Find the ratio in which rice at Rs. 7.20 a kg be mixed with rice at Rs. 5.70 a kg to produce a mixture worth Rs. 6.30 a kg.

A.	1 : 3
B.	2 : 3
C.	3 : 4
D.	4 : 5

Answer: Option B

Explanation:

By the rule of alligation:

Cost of 1 kg of 1st kind Cost of 1 kg of 2nd kind
720 p	Mean Price 630 p	570 p
60	90

Required ratio = 60 : 90 = 2 : 3.

12.

In what ratio must a grocer mix two varieties of tea worth Rs. 60 a kg and Rs. 65 a kg so that by selling the mixture at Rs. 68.20 a kg he may gain 10%?

A.	3 : 2
B.	3 : 4
C.	3 : 5
D.	4 : 5

Answer: Option A

Explanation:

S.P. of 1 kg of the mixture = Rs. 68.20, Gain = 10%.

C.P. of 1 kg of the mixture = Rs.		100	x 68.20		= Rs. 62.
110

By the rule of alligation, we have:

Cost of 1 kg tea of 1st kind. Cost of 1 kg tea of 2nd kind.
Rs. 60	Mean Price Rs. 62	Rs. 65
3	2

Required ratio = 3 : 2.

What ratio must water be mixed with milk costing Rs 10 per liter to buy to get a mixture worth of Rs 4 per liter pick best possible option 2 3 2 1?

Exercise :: Alligation or Mixture - General Questions

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