Ivory made 264 tarts and puffs. After she gave 0.7 of the tarts and 0.75 of the puffs to her children, she was left with an equal number of tarts and puffs. How many puffs had she left?
| |
Tarts |
Puffs |
Before
|
10x1 =
10 u |
4x3 =
12 u |
Change
|
- 7x1 =
- 7 u |
- 3x3 =
- 9 u |
After
|
3x1 =
3 u |
1x3 =
3 u |
Comparing tarts and
puffs in the end |
1x3 =
3 u |
1x3 =
3 u |
0.7 =
710 0.75 =
75100 =
34 The number of tarts and puffs is the same in the end. Make the number of tarts and puffs in the end the same. LCM of 3 and 1 and 1 is 3.
Total number of tarts and puffs at first
= 10 u + 12 u
= 22 u
22 u = 264
1 u = 264 ÷ 22 = 12
Number of puffs that Ivory had left
= 3 u
= 3 x 12
= 36
Answer(s): 36
