At a supermarket, there were
18 as many pears as kiwis. After 3 pears and 31 kiwis were sold, the number of pears became the same as the number of kiwis. How many fruits were at the supermarket in the end?
| |
Pears |
Kiwis |
| Before |
1 u |
8 u |
| Change |
- 3 |
- 31 |
| After |
1 u - 3 |
8 u - 31 |
Number of pears and kiwis in the end is the same.
8 u - 31 = 1 u - 3
8 u - 1 u = 31 - 3
7 u = 28
1 u = 28 ÷ 7 = 4
Number of fruits in the end
= 1 u - 3 + 8 u - 31
= 9 u - 34
= 9 x 4 - 34
= 36 - 34
= 2
Answer(s): 2
