Mrs Chau baked 443 more muffins than Opal. After Mrs Chau sold 188 of her muffins, she had 4 times as many muffins as Opal.
- How many muffins did Opal bake?
- How many muffins did Mrs Chau bake?
| |
Opal |
Mrs Chau |
| Before |
1 u |
1 u + 443 |
| Change |
|
- 188 |
| After |
1 u |
1 u + 255 |
(a)
After
Number of muffins that Opal had = 1 u
Number of muffins that Mrs Chau had = 4 x 1 u = 4 u
Before
Number of muffins that Opal baked = 1 u
Number of muffins that Mrs Chau baked = 1 u + 443
4 u = 1 u + 443 - 188
4 u - 1 u = 255
3 u = 255
1 u = 255 ÷ 3 = 85
Number of muffins that Opal baked
= 1 u
= 85
(b)
Number of muffins that Mrs Chau baked
= 1 u + 443
= 85 + 443
= 528
Answer(s): (a) 85; (b) 528
