Xuan had 60 more pens than Esther. After Esther gave away
35 of her pens, Xuan had five times as many pens as Esther. How many pens did Esther have at first?
| |
Xuan |
Esther |
Comparing Xuan and
Esther at first |
60 more |
|
| Before |
10 u |
5 u |
| Change |
|
- 3 u |
| After |
10 u |
2 u |
Comparing Xuan and
Esther in the end |
5x2 =
10 u |
1x2 =
2 u |
Number of pens that Esther had in the end is repeated. Make the number of pens that Esther had in the end the same. LCM of 1 and 2 is 2.
Number of pens that Xuan had at first = 10 u
Number of pens that Xuan had more than Esther at first
= 10 u - 5 u
= 5 u
5 u = 60
1 u = 60 ÷ 5 = 12
Number of pens that Esther had at first
= 5 u
= 5 x 12
= 60
Answer(s): 60
