There was an equal number of peaches and chikoos. On Thursday, some peaches were added, such that the number of peaches increased by 60%. On Friday, the number of peaches further increased by 50% and the number of chikoos decreased by 10%. There were 60 more peaches than chikoos in the end. How many peaches and chikoos were there altogether at first?
|
Peaches |
Chikoos |
Before |
1 u |
1 u |
Change 1 |
+ 0.6 u |
No change |
After 1 |
1.6 u |
1 u |
Change 2 |
+ 0.8 u |
- 0.1 u |
After 2 |
2.4 u |
0.9 u |
Number of peaches added on Thursday
= 60% x 1 u
=
60100 x 1 u
= 0.6 u
Number of peaches increased on Friday
= 50% x 1.6 u
=
50100 x 1.6 u
= 0.8 u
Number of chikoos decreased on Friday
= 10% x 1 u
=
10100 x 1 u
= 0.1 u
Number of more peaches than chikoos in the end
= 2.4 u - 0.9 u
= 1.5 u
1.5 u = 60
1 u = 60 ÷ 1.5 = 40
Total number of peaches and chikoos at first
= 1 u + 1 u
= 2 u
= 2 x 40
= 80
Answer(s): 80