Zara made 276 macarons and puffs. After she gave 0.1 of the macarons and 0.75 of the puffs to her friends, she was left with an equal number of macarons and puffs. How many puffs had she left?
| |
Macarons |
Puffs |
Before
|
10x1 =
10 u |
4x9 =
36 u |
Change
|
- 1x1 =
- 1 u |
- 3x9 =
- 27 u |
After
|
9x1 =
9 u |
1x9 =
9 u |
Comparing macarons and
puffs in the end |
1x9 =
9 u |
1x9 =
9 u |
0.1 =
110 0.75 =
75100 =
34 The number of macarons and puffs is the same in the end. Make the number of macarons and puffs in the end the same. LCM of 9 and 1 and 1 is 9.
Total number of macarons and puffs at first
= 10 u + 36 u
= 46 u
46 u = 276
1 u = 276 ÷ 46 = 6
Number of puffs that Zara had left
= 9 u
= 9 x 6
= 54
Answer(s): 54
