Page 90 - Start Up Mathematics_4

Solving Word Problems

Example 15: There are 780 calories in 6 chocolate bars. How many calories are there in
each bar?

Solution: Total calories in 6 chocolate bars = 780 130
Number of calories in 1 chocolate bar = 780 ÷ 6 6 780

= 130 – 6
So, there are 130 calories in each bar. 18
– 18

00
– 0
0
Example 16: The product of two numbers is 4,808. If one of the numbers is 8, find the
other number. 601

Solution: Product of two numbers = 4,808 8 4808

One number = 8 – 48
The other number = 4,808 ÷ 8 = 601 0
So, the other number is 601. – 0
8
– 8
0

Example 17: A baker makes 876 cookies in a day. He packs them in boxes each of which
can have 45 cookies. How many boxes will be needed to pack all the cookies?

19
Solution: Number of cookies = 876 45 876

Number of boxes needed = 876 ÷ 45 – 45
As remainder = 21, so 21 cookies will be left over. 426
Thus, 19 + 1 = 20 boxes will be needed to pack all the cookies. – 405
21
Framing Word Problems

Example 18: Frame a word problem for 1,250 ÷ 5 and solve it.
250
Solution: 5 school bags cost ` 1,250. How much will each bag cost? 5 1250
Cost of 5 bags = ` 1,250 – 10
Cost of 1 bag = ` 1,250 ÷ 5 = ` 250 25
– 25
00
– 0
0

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