Linda baked 120 wafers.
58 of the wafers were cherry wafers. The rest were mango wafers. She gave an equal number of cherry wafers and mango wafers away and had 4 times as many cherry wafers as mango wafers left. How many wafers did she give away?
| |
Cherry wafers |
Mango wafers |
Difference |
| Before |
5x3 =
15 u |
3x3 =
9 u |
2x3 =
6 u |
| Change |
- 7 u |
- 7 u |
|
| After |
4x2 =
8 u |
1x2 =
2 u |
3x2 =
6 u |
Since Linda gave away an equal number of cherry wafers and mango wafers, the difference in the number of cherry wafers and mango wafers remains unchanged. Make the difference in the cherry wafers and mango wafers the same. LCM of 2 and 3 is 6.
Total number of wafers at first
= 15 u + 9 u
= 24 u
24 u = 120
1 u = 120 ÷ 24 = 5
Number of wafers that Linda gave away
= 7 u + 7 u
= 14 u
= 14 x 5
= 70
Answer(s): 70
