Page 124 - Maths Class 06

SOLUTION : Weight of rice= 5.400 kg
Weight of sugar = 2.020 kg 5.400 kg
Weight of flour = 10.850 kg 2.820 kg

So, Total weight = 5.400 kg + 2.020 kg + 10.850 kg + 10.850 kg
= 19.070 kg 19.070 kg
Total weight of his purchases is 19.070 kg or 19 kg 70 g.

EXAMPLE 7. 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

Hence, Chandni is left with 25.55 m of cloth.
EXAMPLE 8. John went to the market with ` 500. He ate a pizza cost ing ` 112.80. He pur chased a book
for ` 83.25 and on his way back took a rick shaw for which he paid ` 8. Find the amount left
with him.
SOLUTION : Cost of pizza = ` 112.80 ` 112.80

Cost of book = ` 83.25 ` 83.25
+ ` 8.00
Money paid for rickshaw = ` 8.00
` 204.05 ` 500.00
Total cost = ` 204.05
+ ` 204.05
\ Money left with John = ` 500.00 – ` 204.05
` 295.95
= ` 295.95

Hence, John is left with ` 295.95.

Exercise 8.3

1. Find the sum in each of the follow ing:
(a) 15.06 + 1.45 + 6.723 (b) 0.009 + 3.142 + 30.08

(c) 0.75 + 10.425 + 3.4 (d) 27.067 + 2.45 + 1.38
(e) 175.2 + 81.3 + 21.45 (f) 280.69 + 25.2 + 38.1
2. Subtract the following:
(a) 21.751 – 12.45 (b) 9.892 – 6.56 (c) 11.6 – 9.847

(d) 18.52 – 6.79 (e) 75.23 – 15.42 (f) 23.89 – 12.008
3. Subtract:
(a) 6.12 from 81.42 (b) 81.45 from 112 (c) 9.847 from 11.6
(d) 6.79 from 20.32 (e) 19.01 from 45.67 (f) 48.06 from 70

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