The number of cherry biscuits Dylan baked was
37 of the total number of biscuits. After baking another 99 cherry biscuits, the number of cherry biscuits became
34 of the total number of biscuits. How many biscuits did she bake at first?
| |
Cherry biscuits |
Other biscuits |
Total biscuits |
| Before |
3 u |
4 u |
7 u |
| Change |
+ 99 |
|
|
| After |
3x4 =
12 u |
1x4 =
4 u |
4x4 =
16 u |
The number of other biscuits remains unchanged. Make the number of other biscuits the same. LCM of 4 and 1 is 4.
Number of more cherry biscuits baked
= 12 u - 3 u
= 9 u
9 u = 99
1 u = 99 ÷ 9 = 11
Number of biscuits that Dylan baked at first
= 7 u
= 7 x 11
= 77
Answer(s): 77
