exam Maths Puzzle

How many kilograms of sugar costing Rs. 9 per kg must be mixed with 27kg of sugar costing Rs.7 per kg so that there may be gain of 10% by selling the mixture at Rs.9.24 per kg?

A.

60 kg

B.

63 kg

C.

50 kg

D.

77 kg

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exam Other Question
Two vessels A and B contain spirit and water mixed in the ratio 5:2 and 7:6 respectively. Find the ratio in which these mixture be mixed to obtain a new mixture in vessel c containing spirit and water in the ratio 8:5?

A.

1 : 7

B.

2 : 9

C.

7 : 9

D.

3 : 8 One quantity of wheat at Rs 9.30 per Kg is mixed with another quality at a certain rate in the ratio 8:7. If the mixture so formed be worth Rs 10 per Kg, what is the rate per Kg of the second quality of wheat?

A.

Rs. 12.47

B.

Rs. 10.80

C.

Rs. 15.17

D.

Rs. 47.66