PSLE
Gwen and Kylie each had a plate of dough of the same mass for making croissants. The same mass of dough was used for each croissant. Gwen made 43 croissants and had 495 g of dough left. Kylie made 23 croissants and had 1.195 kg of dough left.

1. What was the mass of dough needed for each croissant?
2. With the remaining dough from both girls, how many more such croissants can be made at most? 

(a)
Difference between the number of croissants made by Gwen and Kylie
= 43 - 23
= 20

1 kg = 1000 g
1.195 kg = 1.195 x 1000 = 1195 g

Difference between the remaining dough left by Kylie and Gwen
= 1195 - 495
= 700 g

Mass of 20 croissants = 700 g

Mass of 1 croissant
= 700 ÷ 20
= 35 g

(b)
Total remaining dough left
= 1195 + 495
= 1690 g

Sets of 35 g
= 1690 ÷ 35
= 48 r 10

Number of croissants = 48

Answer(s): (a) 35 g; (b) 48