Page 111 - Start Up Mathematics_5

EXERCISE 7.5

1. Shikha buys 3 glue sticks. If the cost of one glue stick is ` 11.25, how much does Shikha
pay for the glue sticks?

2. In order to make a shirt, a length of 2.75 m of cloth is needed. How much length of
cloth will be required for 16 such shirts?
3. A worker works for 4 hours and earns ` 50.84. How much does he earn per hour?

4. A juice factory produces 237.45 litres of juice in 5 minutes. How much juice will it
produce in 1 minute?

5. Arushi has ` 500. She buys 4 chocolates, 3 bottles of cold drink and 5 packets of wafers
from a shop. Each chocolate costs ` 5.35, each cold drink ` 10.50 and each packet of
wafers ` 9.75. How much money is she left with?

6. Vini bought 5 bottles of chocolate sauce. If each bottle contains 1.25 litres of sauce,
how many litres of sauce did Vini buy in all?

7. Devesh bought 4 rolls of paper towel. He got 102 metres of paper towel in all. How
many metres of paper towel were on each roll?
8. A pasta factory made 374 kg of pasta in 8 minutes. How much pasta did the factory

make in 1 minute? How much pasta does it make in 15 minutes?

LET’S EVALUATE

1. Find the sum.

(a) 208.75 + 92.36 (b) 1,643.81 + 745.92 (c) 984.315 + 76.24

2. Subtract.
(a) 29.724 from 70.05 (b) 167.32 from 541.28 (c) 204.81 from 327.05

3. Multiply.

(a) 741.38 × 9.2 (b) 139.6 × 2.35 (c) 24.076 × 9.8
4. Divide.

(a) 389.38 ÷ 9 (b) 900.276 ÷ 12 (c) 742.08 ÷ 8

5. Satish had ` 1,284.25 in his shop on Monday. After a whole day’s sale, he had ` 3,000.50.
How much sale did he have?

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