PSLE
Nicole and Jade each had a plate of dough of the same mass for making croissants. The same mass of dough was used for each croissant. Nicole made 34 croissants and had 420 g of dough left. Jade made 16 croissants and had 1.23 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 Nicole and Jade
= 34 - 16
= 18

1 kg = 1000 g
1.23 kg = 1.23 x 1000 = 1230 g

Difference between the remaining dough left by Jade and Nicole
= 1230 - 420
= 810 g

Mass of 18 croissants = 810 g

Mass of 1 croissant
= 810 ÷ 18
= 45 g

(b)
Total remaining dough left
= 1230 + 420
= 1650 g

Sets of 45 g
= 1650 ÷ 45
= 36 r 30

Number of croissants = 36

Answer(s): (a) 45 g; (b) 36