Pamela and Jaslyn collected coins. Pamela gave 50% of her coins to Jaslyn and as a result, Jaslyn's coins increased by 30%. If Pamela had 24 coins left, find the number of coins Jaslyn should give to Pamela in the end so that both had an equal number of coins.

	Pamela	Jaslyn	Comparing the change in Jaslyn's coins
Before	2x3 = 6 u		10x1 = 10u
Change	- 1x3 = - 3 u	+ 1x3 = + 3 u	+ 3x1 = + 3 u
After	1x3 = 3 u		13x1 = 13 u

50% = ⁵⁰₁₀₀ = ¹₂
30% = ³⁰₁₀₀ = ³₁₀

The increase in the number of coins that Jaslyn had is repeated.  Make the increase in the number of coins that Jaslyn had the same. LCM of 1 and 3 = 3

3 u = 24

1 u = 24 ÷ 3 = 8

Number of coins that Jaslyn had more than Pamela in the end
= 13 u - 3 u
= 10 u

Number of coins that Jaslyn should give to Pamela so that both had an equal number of coins in the end
= 10 u ÷ 2
= 5 u
= 5 x 8
= 40

Answer(s): 40