Ivory had 280 less jelly beans than Eva. Eva used
78 of her jelly beans and Ivory used
34 of her jelly beans. In the end, Eva had 4 times as much as Ivory. Find the number of jelly beans that Eva had at first.
| |
Eva |
Ivory |
Comparing Eva
and Parry at first |
|
280 less |
| Before |
8x4 =
32 u |
4 u |
| Change |
- 7x4 =
- 28 u |
- 3 u |
| After |
1x4 =
4 u |
1 u |
Comparing Eva
and Parry in the end |
4 u |
1 u |
The number of jelly beans that Eva had in the end is repeated. Make the number of jelly beans that Eva had in the end the same. LCM of 1 and 4 is 4.
Number of jelly beans that Ivory had less than Eva
= 32 u - 4 u
= 28 u
28 u = 280
1 u = 280 ÷ 28 = 10
Number of jelly beans that Eva had at first
= 32 u
= 32 x 10
= 320
Answer(s): 320
