The number of oranges at a stall was 90% more than the number of pears. After 70% of the pears were sold, there were 80 more oranges than pears. Find the total number of oranges and pears at the stall at first.
| |
Oranges |
Pears |
More |
Total |
| Before |
19 u |
10 u |
|
29 u |
| Change |
|
- 7 u |
|
|
| After |
19 u |
3 u |
16 u |
|
Number of pears at first in percent = 100%
Number of oranges at first in percent
= 100% + 90%
= 190%
OrangesPears =
190100 =
1910Number of pears sold
= 70% x 10 u
=
70100 x 10 u
= 7 u
Number of more oranges than pears in the end
= 19 u - 3 u
= 16 u
16 u = 80
1 u = 80 ÷ 16 = 5
Total number of pears and oranges at first
= 19 u + 10 u
= 29 u
= 29 x 5
= 145
Answer(s): 145
