PSLE At first, Usha had 78 coins and some erasers. After she gave away 38 coins and 25% of the erasers, she had a total of 46 coins and erasers. How many erasers did Usha have at first?
|
Coins |
Erasers |
Total |
Before |
78 |
4 u |
|
Change |
- 38 |
- 1 u |
|
After |
40 |
3 u |
46 |
25% =
25100 =
14 Number of coins that Usha left
= 78 - 38
= 40
Number of erasers that Usha left
= 46 - 40
= 6
3 u = 6
1 u = 6 ÷ 3 = 2
Number of erasers that Usha had at first
= 4 u
= 4 x 2
= 8
Answer(s): 8