Mrs Ong baked 459 more puffs than Lynn. After Mrs Ong sold 141 of her puffs, she had 4 times as many puffs as Lynn.
- How many puffs did Lynn bake?
- How many puffs did Mrs Ong bake?
| |
Lynn |
Mrs Ong |
| Before |
1 u |
1 u + 459 |
| Change |
|
- 141 |
| After |
1 u |
1 u + 318 |
(a)
After
Number of puffs that Lynn had = 1 u
Number of puffs that Mrs Ong had = 4 x 1 u = 4 u
Before
Number of puffs that Lynn baked = 1 u
Number of puffs that Mrs Ong baked = 1 u + 459
4 u = 1 u + 459 - 141
4 u - 1 u = 318
3 u = 318
1 u = 318 ÷ 3 = 106
Number of puffs that Lynn baked
= 1 u
= 106
(b)
Number of puffs that Mrs Ong baked
= 1 u + 459
= 106 + 459
= 565
Answer(s): (a) 106; (b) 565
