Pamela had 8 more sweets than Mary. Pamela used
34 of her sweets and Mary used
34 of her sweets. In the end, Pamela had 2 times as much as Mary. Find the number of sweets that Mary had at first.
| |
Pamela |
Mary |
Comparing Pamela
and Parry at first |
8 more |
|
| Before |
4x2 =
8 u |
4 u |
| Change |
- 3x2 =
- 6 u |
- 3 u |
| After |
1x2 =
2 u |
1 u |
Comparing Pamela
and Parry in the end |
2 u |
1 u |
The number of sweets that Pamela had in the end is repeated. Make the number of sweets that Pamela had in the end the same. LCM of 1 and 2 is 2.
Number of sweets that Pamela had more than Mary
= 8 u - 4 u
= 4 u
4 u = 8
1 u = 8 ÷ 4 = 2
Number of sweets that Mary had at first
= 4 u
= 4 x 2
= 8
Answer(s): 8
