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Ques:- In what ratio must be 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 : 3
C. 3 : 4
D. 3 : 6
Ques:- In which ratio must water be mixed with milk costing Rs. 12 per litre to obtain a mixture worth of Rs. 8 per litre?
A. 1 : 2
B. 2 : 1
C. 2 : 3
D. 3 : 2