Zara had 224 more chocolate bars than Winnie. Zara used
78 of her chocolate bars and Winnie used
34 of her chocolate bars. In the end, Zara had 4 times as much as Winnie. Find the number of chocolate bars that Winnie had at first.
| |
Zara |
Winnie |
Comparing Zara
and Parry at first |
224 more |
|
| Before |
8x4 =
32 u |
4 u |
| Change |
- 7x4 =
- 28 u |
- 3 u |
| After |
1x4 =
4 u |
1 u |
Comparing Zara
and Parry in the end |
4 u |
1 u |
The number of chocolate bars that Zara had in the end is repeated. Make the number of chocolate bars that Zara had in the end the same. LCM of 1 and 4 is 4.
Number of chocolate bars that Zara had more than Winnie
= 32 u - 4 u
= 28 u
28 u = 224
1 u = 224 ÷ 28 = 8
Number of chocolate bars that Winnie had at first
= 4 u
= 4 x 8
= 32
Answer(s): 32
