Page 160 - Maths Class 03

Example : Convert 4 hours into minutes.

Solution : 1 hour = 60 minutes

4 hours = 4 × 60 = 240 minutes

Practice - 10.4
Practice - 10.4
Practice - 10.4
Practice - 10.4
1. Convert into minutes.

a. 4 hours, 50 minutes b. 5 hours, 5 minutes

c. 8 hours 2 minutes d. 5 hours

e. 3 hours f. 9 hours

g. 8 hours h. 10 hours

i. 7 hours j. 3 hours, 20 minutes

2. Convert into seconds.

a. 10 hours b. 2 minutes 30 seconds

c. 7 minutes 7 seconds d. 2 hours 26 minutes

e. 4 minutes f. 9 minutes

g. 45 minutes h. 4 hours

3. Put a tick ( ) on the correct option for each of the following.3

a. A car travels 100 km. It takes i. 2 minutes ii. 2 hours

b. A baby takes a nap for i. 40 minutes ii. 40 hours

c. Akhil walks to school. He takes i. 20 minutes ii. 20 hours

d. Monu plays with her friends for i. 2 minutes ii. 2 hours

e. A litre of milk is boiled. It takes i. 10 minutes ii. 10 hours

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The earth takes one day to go round itself completely. This means the earth completes one
rotation in 24 hours.

Mathematics-3 160