Sabrina had 210 more sweets than Anna. Sabrina used
78 of her sweets and Anna used
12 of her sweets. In the end, Sabrina had 4 times as much as Anna. Find the number of sweets that Anna had at first.
| |
Sabrina |
Anna |
Comparing Sabrina
and Parry at first |
210 more |
|
| Before |
8x4 =
32 u |
2 u |
| Change |
- 7x4 =
- 28 u |
- 1 u |
| After |
1x4 =
4 u |
1 u |
Comparing Sabrina
and Parry in the end |
4 u |
1 u |
The number of sweets that Sabrina had in the end is repeated. Make the number of sweets that Sabrina had in the end the same. LCM of 1 and 4 is 4.
Number of sweets that Sabrina had more than Anna
= 32 u - 2 u
= 30 u
30 u = 210
1 u = 210 ÷ 30 = 7
Number of sweets that Anna had at first
= 2 u
= 2 x 7
= 14
Answer(s): 14
