Carl and Rael gave away the same number of pens. Carl gave away
35 of his pens while Rael gave
49 of his pens away. Given that Carl had 14 pens less than Rael at first, how many pens did Carl have at first?
| |
Carl |
Rael |
| Before |
5x4 =
20 u |
9x3 =
27 u |
| Change |
- 3x4 =
- 12 u |
- 4x3 =
- 12 u |
| After |
2x4 =
8 u |
5x3 =
15 u |
The number of pens that Carl and Rael gave away is the same. Make the number of pens that Carl and Rael gave away the same. LCM of 3 and 4 is 12.
Number of pens that Carl had at first = 20 u
Number of pens that Rael had at first = 27 u
Number of pens that Carl had less than Rael at first
= 27 u - 20 u
= 7 u
7 u = 14
1 u = 14 ÷ 7 = 2
Number of pens that Carl had at first
= 20 u
= 20 x 2
= 40
Answer(s): 40
