Which of the following is the ratio between a number and the number obtained by adding one-fifth of that number?

1. 4 : 5

2. 5 : 4

3. 5 : 6

4. 6 : 5

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

If a carton containing a dozen mirrors is dropped, then which of the following cannot be the ratio of broken mirrors to unbroken mirrors?

1. 2 : 1

2. 7 : 5

3. 3 : 2

4. 3 : 1

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