Victoria had 32 more jelly beans than Mary. Victoria used
67 of her jelly beans and Mary used
45 of her jelly beans. In the end, Victoria had 3 times as much as Mary. Find the number of jelly beans that Mary had at first.
| |
Victoria |
Mary |
Comparing Victoria
and Parry at first |
32 more |
|
| Before |
7x3 =
21 u |
5 u |
| Change |
- 6x3 =
- 18 u |
- 4 u |
| After |
1x3 =
3 u |
1 u |
Comparing Victoria
and Parry in the end |
3 u |
1 u |
The number of jelly beans that Victoria had in the end is repeated. Make the number of jelly beans that Victoria had in the end the same. LCM of 1 and 3 is 3.
Number of jelly beans that Victoria had more than Mary
= 21 u - 5 u
= 16 u
16 u = 32
1 u = 32 ÷ 16 = 2
Number of jelly beans that Mary had at first
= 5 u
= 5 x 2
= 10
Answer(s): 10
