Usha had 50 more chocolate bars than Roshel. Usha used
45 of her chocolate bars and Roshel used
45 of her chocolate bars. In the end, Usha had 3 times as much as Roshel. Find the number of chocolate bars that Roshel had at first.
| |
Usha |
Roshel |
Comparing Usha
and Parry at first |
50 more |
|
| Before |
5x3 =
15 u |
5 u |
| Change |
- 4x3 =
- 12 u |
- 4 u |
| After |
1x3 =
3 u |
1 u |
Comparing Usha
and Parry in the end |
3 u |
1 u |
The number of chocolate bars that Usha had in the end is repeated. Make the number of chocolate bars that Usha had in the end the same. LCM of 1 and 3 is 3.
Number of chocolate bars that Usha had more than Roshel
= 15 u - 5 u
= 10 u
10 u = 50
1 u = 50 ÷ 10 = 5
Number of chocolate bars that Roshel had at first
= 5 u
= 5 x 5
= 25
Answer(s): 25
