PSLE
Xuan and Yoko made some banana croissants and cranberry croissants. Xuan made 27 more banana croissants than cranberry croissants. Yoko made 47 more cranberry croissants than banana croissants. The total number of banana croissants made up 45% of the total number of croissants they made. How many cranberry croissants did they make altogether?

Number of cranberry croissants		Number of banana croissants
55%		45%
Xuan	Yoko	Xuan	Yoko
1 u	1 p + 47	1 u + 27	1 p

Xuan
Number of cranberry croissants = 1 u
Number of banana croissants = 1 u + 27

Yoko
Number of banana croissants = 1 p
Number of cranberry croissants = 1 p + 47

Number of cranberry croissants in percent
= 100% - 45%
= 55%

1 u + 27 + 1 p = 45% --- (1)
1 u + 1 p + 47 = 55% --- (2)

(2) - (1)
55% - 45% = 47 - 27
10% = 20

1% = 20 ÷ 10 = 2

Number of cranberry croissants that they made altogether
= 55%
= 55 x 2
= 110

Answer(s): 110