The ratio of 5 m to 10 km is

• 1 : 20

• 1 : 2

• 2 : 1

20% of an hour is

• 20 minutes

• 12 minutes

• 33 ¹/₃ minutes

In a ratio, the quantities are:

• always in the same unit

• always in different unit

• sometimes in the same unit and sometimes in different units

Total cost price is given by

• CP + Overhead expenses

• SP + Overhead expenses

• CP - Overhead expenses

Rs 10 increased by 10% is

• Re 1

• Rs 9

• Rs 11