There were 247 lemons and chikoos in a fruit stall.
27 of the lemons and
38 of chikoos were sold. Given that there were 190 lemons and chikoos left, how many lemons were there in the fruit stall at first?
|
Lemons |
Chikoos |
Before |
7 u |
8 p |
Change |
- 2 u |
- 3 p |
After |
5 u |
5 p |
7 u + 8 p = 247 --- (1)
5 u + 5 p = 190 --- (2)
Make p the same.
(1)
x 5 35 u + 40 p = 1235 --- (3)
(2)
x 8 40 u + 40 p = 1520 --- (4)
(4) - (3)
40 u - 35 u = 1520 - 1235
5 u = 285
1 u = 285 ÷ 5 = 57
Number of lemons at first
= 7 u
= 7 x 57
= 399
Answer(s): 399