PSLE
Marion and Victoria each had a plate of dough of the same mass for making croissants. The same mass of dough was used for each croissant. Marion made 32 croissants and had 370 g of dough left. Victoria made 14 croissants and had 1.09 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 Marion and Victoria
= 32 - 14
= 18

1 kg = 1000 g
1.09 kg = 1.09 x 1000 = 1090 g

Difference between the remaining dough left by Victoria and Marion
= 1090 - 370
= 720 g

Mass of 18 croissants = 720 g

Mass of 1 croissant
= 720 ÷ 18
= 40 g

(b)
Total remaining dough left
= 1090 + 370
= 1460 g

Sets of 40 g
= 1460 ÷ 40
= 36 r 20

Number of croissants = 36

Answer(s): (a) 40 g; (b) 36