Mrs Toh baked 378 more tarts than Diana. After Mrs Toh sold 153 of her tarts, she had 4 times as many tarts as Diana.
- How many tarts did Diana bake?
- How many tarts did Mrs Toh bake?
| |
Diana |
Mrs Toh |
| Before |
1 u |
1 u + 378 |
| Change |
|
- 153 |
| After |
1 u |
1 u + 225 |
(a)
After
Number of tarts that Diana had = 1 u
Number of tarts that Mrs Toh had = 4 x 1 u = 4 u
Before
Number of tarts that Diana baked = 1 u
Number of tarts that Mrs Toh baked = 1 u + 378
4 u = 1 u + 378 - 153
4 u - 1 u = 225
3 u = 225
1 u = 225 ÷ 3 = 75
Number of tarts that Diana baked
= 1 u
= 75
(b)
Number of tarts that Mrs Toh baked
= 1 u + 378
= 75 + 378
= 453
Answer(s): (a) 75; (b) 453
