Page 175 - Mathematics_Std_4

shs 500
× 12

1000
+ 500
FOR ONLINE READING ONLY
shs 6000

Therefore, the cost of buying 12 packets is 6,000 shillings.

Example 2

An exercise book is sold at 800 shillings. What is the cost of 15
exercise books of the same type?

Solution

Cost of one exercise book = shs 800
Number of exercise books =15
Multiply the cost by the number of exercise books.

shs 800
× 15

4000
+ 800

shs 12000
Therefore, 15 exercise books will be sold at 12,000 shillings.

Example 3

One litre of milk is sold at 1,850 shillings and 50 cents. How
much will 17 litres of milk cost?

Solution
Cost of 1 litre = shs 1850 50 cts

Number of litres =17
Multiply the cost by the number of litres.

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07/11/2024 14:10:12
MATHEMATICS STD 4 PB 2024.indd 168
MATHEMATICS STD 4 PB 2024.indd 168 07/11/2024 14:10:12