Cody and Wesley gave away the same number of erasers. Cody gave away
611 of his erasers while Wesley gave
49 of his erasers away. Given that Cody had 20 erasers less than Wesley at first, how many erasers did Cody have at first?
| |
Cody |
Wesley |
| 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 Cody and Wesley gave away is the same. Make the number of erasers that Cody and Wesley gave away the same. LCM of 6 and 4 is 12.
Number of erasers that Cody had at first = 22 u
Number of erasers that Wesley had at first = 27 u
Number of erasers that Cody had less than Wesley at first
= 27 u - 22 u
= 5 u
5 u = 20
1 u = 20 ÷ 5 = 4
Number of erasers that Cody had at first
= 22 u
= 22 x 4
= 88
Answer(s): 88
