Govind spends ₹ 8,100 in buying some jeans at ₹ 1,200 each and some shirts at ₹ 300 each. The ratio of the number of shirts to that of jeans, when the maximum possible number of jeans is purchased is:

1. 1 : 2

2. 1 : 4

3. 2 : 1

4. 5 : 7

which of the following represents xy = 64?

1. 8 : x = 8 : y

2. x : 16 = y : 4

3. x : 8 = y : 8

4. 32 : x = y : 2

A mixture of paint is prepared by mixing 2 parts of red pigments with 5 parts of the base. Using the given information in the following table, find the values of a, b and c to get the required mixture of paint.

1. a = 10, b = 10, c = 10

2. a = 5, b = 2, c = 5

3. a = 10, b = 5, c = 10

4. a = 10, b = 5, c = 15