Vaidev and Sam had a total of 164 erasers at first. After Vaidev bought 24 more erasers and Sam gave away 18 erasers, Vaidev now has the same number of erasers as Sam. How many erasers did Vaidev have at first?
|
Vaidev |
Sam |
Total |
Before |
1 u - 24 |
1 u + 18 |
164 |
Change |
+ 24 |
- 18 |
|
After |
1 u |
1 u |
170 |
Total number of erasers in the end
= 164 + 24 - 18
= 170
2 u = 170
1 u = 170 ÷ 2 = 85
Number of erasers that Vaidev had in the end
= 1 u
= 85
Number of erasers that Vaidev had at first
= 85 - 24
= 61
Answer(s): 61