PSLE Ivory and Nicole each had a plate of dough of the same mass for making scones. The same mass of dough was used for each scone. Ivory made 32 scones and had 470 g of dough left. Nicole made 16 scones and had 1.11 kg of dough left.
- What was the mass of dough needed for each scone?
- With the remaining dough from both girls, how many more such scones can be made at most?
(a)
Difference between the number of scones made by Ivory and Nicole
= 32 - 16
= 16
1 kg = 1000 g
1.11 kg = 1.11 x 1000 = 1110 g
Difference between the remaining dough left by Nicole and Ivory
= 1110 - 470
= 640 g
Mass of 16 scones = 640 g
Mass of 1 scone
= 640 ÷ 16
= 40 g
(b)
Total remaining dough left
= 1110 + 470
= 1580 g
Sets of 40 g
= 1580 ÷ 40
= 39 r 20
Number of scones = 39
Answer(s): (a) 40 g; (b) 39