PSLE
Penelope and Jean made some banana muffins and strawberry muffins. Penelope made 25 more banana muffins than strawberry muffins. Jean made 185 more strawberry muffins than banana muffins. The total number of banana muffins made up 42% of the total number of muffins they made. How many banana muffins did they make altogether?

Number of strawberry muffins		Number of banana muffins
58%		42%
Penelope	Jean	Penelope	Jean
1 u	1 p + 185	1 u + 25	1 p

Penelope
Number of strawberry muffins = 1 u
Number of banana muffins = 1 u + 25

Jean
Number of banana muffins = 1 p
Number of strawberry muffins = 1 p + 185

Number of strawberry muffins in percent
= 100% - 42%
= 58%

1 u + 25 + 1 p = 42% --- (1)
1 u + 1 p + 185 = 58% --- (2)

(2) - (1)
58% - 42% = 185 - 25
16% = 160

1% = 160 ÷ 16 = 10

Number of banana muffins that they made altogether
= 42%
= 42 x 10
= 420

Answer(s): 420