At a fruit stall, there were 820 lemons and pomegranates at first.
16 of the lemons and
18 of the pomegranates were sold. In the end, there were same number of lemons and pomegranates. How many less pomegranates than lemons were sold?
|
Lemons |
Pomegranates |
Before |
6x7 = 42 u |
8x5 = 40 u |
Change |
- 1x7 = - 7 u
|
- 1x5 = - 5 u
|
After |
5x7 = 35 u |
7x5 = 35 u |
Comparing lemons and pomegranates in the end |
1x35 = 35 u |
1x35 = 35 u |
The number of lemons and pomegranates in the end is the same. Make the number of lemons and pomegranates in the end the same. LCM of 5, 7 and 1 is 35.
Number of lemons and pomegranates in the end
= 42 u + 40 u
= 82 u
82 u = 820
1 u = 820 ÷ 82 = 10
Number of less pomegranates than lemons were sold
= 7 u - 5 u
= 2 u
= 2 x 10
= 20
Answer(s): 20