Page 99 - ICSE Math 6

Example 15: Surbhi is carrying 4 kg 400 g rice, 3 kg 20 g wheat and 6 kg 850 g sugar. Find the total
weight that she is carrying.
400
Solution: Quantity of rice = 4 kg 400 g = 4 kg + kg
1000
= 4.400 kg
20
Quantity of wheat = 3 kg 20 g = 3 kg + kg
1000
= 3.020 kg
850
Quantity of sugar = 6 kg 850 g = 6 kg + kg 4.400 kg
1000
= 6.850 kg 3.020 kg
+ 6.850 kg
Total weight that she is carrying = 4.400 kg + 3.020 kg + 6.850 kg
14.270 kg
= 14.270 kg
Example 16: Chandni has 30 m 5 cm long cloth. She cut 4 m 50 cm length of cloth from this to make
a suit. How much cloth is left with her?
5
Solution: Total cloth Chandni has = 30 m 5 cm = 30 m + m = 30.05 m
100 30.05 m
50 – 4.50 m
Cloth cut for suit = 4 m 50 cm = 4 m + m = 4.50 m
100 25.55 m
Cloth left with her = 30.05 m – 4.50 m = 25.55 m

Example 17: John went to the market with ` 500. He ate food costing ` 112.80. He purchased a book
for ` 83.25 and on his way back took a rickshaw for which he paid ` 8. Find the amount
left with him.

Solution: Cost of food = ` 112.80 ` 112.80
` 83.25
Cost of book = ` 83.25
+ ` 8.00
Money paid for rickshaw = ` 8.00 ` 204.05 ` 500.00

Total cost = ` 204.05 – ` 204.05
` 295.95
∴ Money left with John = ` 500.00 – ` 204.05 = ` 295.95

EXERCISE 6.2

1. Add the following.

(a) 0.62 and 1.561 (b) 22.501, 0.001 and 7.452
(c) 2.7, 5.13 and 0.015 (d) 206.51, 150.013 and 0.569

2. Subtract the following.
(a) 66.50 from 100.5 (b) 12.567 from 21.50

(c) 121.1 from 220 (d) 2.81 from 5.695
3. Find the number which when subtracted from 200 gives 101.59.

4. Find the number which exceeds 161.59 by 5.651.

83