Jenson had 60% fewer mini cupcakes than Simon. After Simon gave 154 mini cupcakes to Jenson, Jenson had ³₄ as many mini cupcakes as Simon. How many mini cupcakes did each of them have in the end?

1. Simon
2. Jenson

	Jenson	Simon	Total
Before	2x7 = 14 u	5x7 = 35 u	7x7 = 49 u
Change	+ 154	- 154
After	3x7 = 21 u	4x7 =  28 u	7x7 = 49 u

Number of mini cupcakes that Jenson had at first in percentage
= 100% - 60%
= 40%

40% = ⁴⁰₁₀₀ = ²₅

The total number of mini cupcakes at first and in the end remains unchanged. Make the total number of mini cupcakes the same. LCM of 7 and 7 is 49.

Number of mini cupcakes that Simon gave to Jenson
= 35 u - 28 u
= 7 u

7 u = 154

1 u = 154 ÷ 7 = 22

Number of mini cupcakes that Jenson had in the end
= 21 u
= 21 x 22
= 462

Number of mini cupcakes that Simon had in the end
= 28 u
= 28 x 22
= 616

Answer(s): (a) 462; (b) 616