Xandra had 51 less jelly beans than Yoko. Yoko used
67 of her jelly beans and Xandra used
34 of her jelly beans. In the end, Yoko had 3 times as much as Xandra. Find the number of jelly beans that Yoko had at first.
| |
Yoko |
Xandra |
Comparing Yoko
and Parry at first |
|
51 less |
| Before |
7x3 =
21 u |
4 u |
| Change |
- 6x3 =
- 18 u |
- 3 u |
| After |
1x3 =
3 u |
1 u |
Comparing Yoko
and Parry in the end |
3 u |
1 u |
The number of jelly beans that Yoko had in the end is repeated. Make the number of jelly beans that Yoko had in the end the same. LCM of 1 and 3 is 3.
Number of jelly beans that Xandra had less than Yoko
= 21 u - 4 u
= 17 u
17 u = 51
1 u = 51 ÷ 17 = 3
Number of jelly beans that Yoko had at first
= 21 u
= 21 x 3
= 63
Answer(s): 63
