Hilda made 242 scones and muffins. After she gave 0.7 of the scones and 0.75 of the muffins to her children, she was left with an equal number of scones and muffins. How many muffins had she left?
| |
Scones |
Muffins |
Before
|
10x1 =
10 u |
4x3 =
12 u |
Change
|
- 7x1 =
- 7 u |
- 3x3 =
- 9 u |
After
|
3x1 =
3 u |
1x3 =
3 u |
Comparing scones and
muffins in the end |
1x3 =
3 u |
1x3 =
3 u |
0.7 =
710 0.75 =
75100 =
34 The number of scones and muffins is the same in the end. Make the number of scones and muffins in the end the same. LCM of 3 and 1 and 1 is 3.
Total number of scones and muffins at first
= 10 u + 12 u
= 22 u
22 u = 242
1 u = 242 ÷ 22 = 11
Number of muffins that Hilda had left
= 3 u
= 3 x 11
= 33
Answer(s): 33
