PSLE
Vanessa and Jade made some banana muffins and chocolate chip muffins. Vanessa made 149 more banana muffins than chocolate chip muffins. Jade made 199 more chocolate chip muffins than banana muffins. The total number of banana muffins made up 45% of the total number of muffins they made. How many banana muffins did they make altogether?

Number of chocolate chip muffins		Number of banana muffins
55%		45%
Vanessa	Jade	Vanessa	Jade
1 u	1 p + 199	1 u + 149	1 p

Vanessa
Number of chocolate chip muffins = 1 u
Number of banana muffins = 1 u + 149

Jade
Number of banana muffins = 1 p
Number of chocolate chip muffins = 1 p + 199

Number of chocolate chip muffins in percent
= 100% - 45%
= 55%

1 u + 149 + 1 p = 45% --- (1)
1 u + 1 p + 199 = 55% --- (2)

(2) - (1)
55% - 45% = 199 - 149
10% = 50

1% = 50 ÷ 10 = 5

Number of banana muffins that they made altogether
= 45%
= 45 x 5
= 225

Answer(s): 225