Page 136 - Maths Skill - 3

134 Maths

3. Add 10 kg 500 g, 2 kg 750 g and 395 g.

4. Subtract 12 kg 150 g from 23 kg 795 g.

5. Subtract 485 g from 3 kg.

Word Problems

Let us learn how to solve word problems based on weights using kg and g.

Let’s Attempt

Example 1: A grocer had 50 kg of rice. He sold 12 kg 875 g to one customer. Find the
weight of rice left with him. kg g

Solution: Total quantity of rice = 50 kg 4 9 9 9 10

Quantity sold to one customer = 12 kg 875 g 5 0 0 0 0

Quantity of rice left with him = 50 kg – 12 kg 875 g – 1 2 8 7 5
Thus, quantity of rice left with grocer is 37 kg 125 g 3 7 1 2 5

Example 2: Amit weighs 48 kg 385 g. His elder brother Rohit is heavier than him by
5 kg 473 g. How much does Rohit weigh?
Solution: Amit’s weight = 48 kg 385 g kg g

Rohit is heavier by 5 kg 473 g. 1 1

Rohit’s weight = 48 kg 385 g + 5 kg 473 g 4 8 3 8 5

= 53 kg 858 g + 5 5 4 7 3
8
8
5
3
Thus, Rohit’s weight is 53 kg 858 g.

Exercise 10.6

1. A rhinoceros in the zoo when born had a weight 35 kg
390 g. After two years its weight increased to 205 kg.
What is the increase in its weight?

2. The total weight of Ruhi and Juhi is 63 kg 750 g. If Ruhi

weighs 37 kg 230 g, how much does Juhi weigh?

3. Ronny purchased 60 kg 195 g sugar from one shop and 23 kg 275 g from another
shop. How much sugar did he purchase in all?