Tiffany baked 128 wafers.
58 of the wafers were matcha wafers. The rest were mocha wafers. She gave an equal number of matcha wafers and mocha wafers away and had 5 times as many matcha wafers as mocha wafers left. How many wafers did she give away?
| |
Matcha wafers |
Mocha wafers |
Difference |
| Before |
5x2 =
10 u |
3x2 =
6 u |
2x2 =
4 u |
| Change |
- 5 u |
- 5 u |
|
| After |
5x1 =
5 u |
1x1 =
1 u |
4x1 =
4 u |
Since Tiffany gave away an equal number of matcha wafers and mocha wafers, the difference in the number of matcha wafers and mocha wafers remains unchanged. Make the difference in the matcha wafers and mocha wafers the same. LCM of 2 and 4 is 4.
Total number of wafers at first
= 10 u + 6 u
= 16 u
16 u = 128
1 u = 128 ÷ 16 = 8
Number of wafers that Tiffany gave away
= 5 u + 5 u
= 10 u
= 10 x 8
= 80
Answer(s): 80
