PSLE Xandra and Kimberly each had a plate of dough of the same mass for making croissants. The same mass of dough was used for each croissant. Xandra made 32 croissants and had 480 g of dough left. Kimberly made 14 croissants and had 1.11 kg of dough left.
- What was the mass of dough needed for each croissant?
- 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 Xandra and Kimberly
= 32 - 14
= 18
1 kg = 1000 g
1.11 kg = 1.11 x 1000 = 1110 g
Difference between the remaining dough left by Kimberly and Xandra
= 1110 - 480
= 630 g
Mass of 18 croissants = 630 g
Mass of 1 croissant
= 630 ÷ 18
= 35 g
(b)
Total remaining dough left
= 1110 + 480
= 1590 g
Sets of 35 g
= 1590 ÷ 35
= 45 r 15
Number of croissants = 45
Answer(s): (a) 35 g; (b) 45