There were 276 starfruits and pomegranates in a fruit stall.
49 of the starfruits and
35 of pomegranates were sold. Given that there were 151 starfruits and pomegranates left, how many starfruits were there in the fruit stall at first?
|
Starfruits |
Pomegranates |
Before |
9 u |
5 p |
Change |
- 4 u |
- 3 p |
After |
5 u |
2 p |
9 u + 5 p = 276 --- (1)
5 u + 2 p = 151 --- (2)
Make p the same.
(1)
x 2 18 u + 10 p = 552 --- (3)
(2)
x 5 25 u + 10 p = 755 --- (4)
(4) - (3)
25 u - 18 u = 755 - 552
7 u = 203
1 u = 203 ÷ 7 = 29
Number of starfruits at first
= 9 u
= 9 x 29
= 261
Answer(s): 261