Valen had
35 the number of pens that Flynn had at first. After Flynn gave Valen 36 of his pens, Valen had
34 the number of pens that Flynn had. How many pens did Valen have at first?
|
Valen |
Flynn |
Total |
Before |
3x7 = 21 u |
5x7 = 35 u |
8x7 = 56 u |
Change |
+ 3 u |
- 3 u |
|
After |
3x8 = 24 u |
4x8 = 32 u |
7x8 = 56 u |
The total number of pens that Valen and Flynn had at first and in the end remains unchanged. Make the total number of pens the same. LCM of 8 and 7 is 56.
Number of pens that Flynn gave Valen
= 24 u - 21 u
= 3 u
3 u = 36
1 u = 36 ÷ 3 = 12
Number of pens that Valen had at first
= 21 u
= 21 x 12
= 252
Answer(s): 252