PSLE Jen and Anna each had a plate of dough of the same mass for making muffins. The same mass of dough was used for each muffin. Jen made 39 muffins and had 485 g of dough left. Anna made 19 muffins and had 1.185 kg of dough left.
- What was the mass of dough needed for each muffin?
- With the remaining dough from both girls, how many more such muffins can be made at most?
(a)
Difference between the number of muffins made by Jen and Anna
= 39 - 19
= 20
1 kg = 1000 g
1.185 kg = 1.185 x 1000 = 1185 g
Difference between the remaining dough left by Anna and Jen
= 1185 - 485
= 700 g
Mass of 20 muffins = 700 g
Mass of 1 muffin
= 700 ÷ 20
= 35 g
(b)
Total remaining dough left
= 1185 + 485
= 1670 g
Sets of 35 g
= 1670 ÷ 35
= 47 r 25
Number of muffins = 47
Answer(s): (a) 35 g; (b) 47