Tim and Michael gave away the same number of erasers. Tim gave away
611 of his erasers while Michael gave
49 of his erasers away. Given that Tim had 25 erasers less than Michael at first, how many erasers did Tim have at first?
| |
Tim |
Michael |
| Before |
11x2 =
22 u |
9x3 =
27 u |
| Change |
- 6x2 =
- 12 u |
- 4x3 =
- 12 u |
| After |
5x2 =
10 u |
5x3 =
15 u |
The number of erasers that Tim and Michael gave away is the same. Make the number of erasers that Tim and Michael gave away the same. LCM of 6 and 4 is 12.
Number of erasers that Tim had at first = 22 u
Number of erasers that Michael had at first = 27 u
Number of erasers that Tim had less than Michael at first
= 27 u - 22 u
= 5 u
5 u = 25
1 u = 25 ÷ 5 = 5
Number of erasers that Tim had at first
= 22 u
= 22 x 5
= 110
Answer(s): 110
