Gabby baked a total of 494 cupcakes and scones. After giving away 75% of the scones and 80% of the cupcakes, she was left with thrice as many scones as cupcakes. Find the number of cupcakes Gabby gave away.
| |
Scones |
Cupcakes |
| Before |
4x3 =
12 u
|
5 u |
| Change |
- 3x3 =
9 u |
- 4 u |
| After |
1x3 =
3 u |
1 u |
Comparing scones and
cupcakes in the end |
3x1 =
3 u |
1x1 =
1 u |
75% =
75100 =
3480% =
80100 =
45The number of scones in the end is the repeated identity. Make the number of scones in the end the same. LCM of 1 and 3 is 3.
Total number of pastries at first
= 12 u + 5 u
= 17 u
17 u = 494
1 u = 494 ÷ 17 = 6
Number of cupcakes that Gabby gave away
= 4 u
= 4 x 6
= 24
Answer(s): 24
