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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
Ques:- Find out the wrong number in the series:
4, 5, 15, 49, 201, 1011, 6073
4, 5, 15, 49, 201, 1011, 6073
A. 5
B. 15
C. 49
D. 201