There was an equal number of peaches and lemons. On Friday, some peaches were added, such that the number of peaches increased by 60%. On Saturday, the number of peaches further increased by 50% and the number of lemons decreased by 30%. There were 17 more peaches than lemons in the end. How many peaches and lemons were there altogether at first?

	Peaches	Lemons
Before	1 u	1 u
Change 1	+ 0.6 u	No change
After 1	1.6 u	1 u
Change 2	+ 0.8 u	- 0.3 u
After 2	2.4 u	0.7 u

Number of peaches added on Friday
= 60% x 1 u
= ⁶⁰₁₀₀ x 1 u
= 0.6 u

Number of peaches increased on Saturday
= 50% x 1.6 u
= ⁵⁰₁₀₀ x 1.6 u
= 0.8 u

Number of lemons decreased on Saturday
= 30% x 1 u
= ³⁰₁₀₀ x 1 u
= 0.3 u

Number of more peaches than lemons in the end
= 2.4 u - 0.7 u
= 1.7 u

1.7 u = 17

1 u = 17 ÷ 1.7 = 10

Total number of peaches and lemons at first
= 1 u + 1 u
= 2 u
= 2 x 10
= 20

Answer(s): 20