Usha had 50 more sweets than Winnie. Usha used
34 of her sweets and Winnie used
12 of her sweets. In the end, Usha had 3 times as much as Winnie. Find the number of sweets that Winnie had at first.
| |
Usha |
Winnie |
Comparing Usha
and Parry at first |
50 more |
|
| Before |
4x3 =
12 u |
2 u |
| Change |
- 3x3 =
- 9 u |
- 1 u |
| After |
1x3 =
3 u |
1 u |
Comparing Usha
and Parry in the end |
3 u |
1 u |
The number of sweets that Usha had in the end is repeated. Make the number of sweets that Usha had in the end the same. LCM of 1 and 3 is 3.
Number of sweets that Usha had more than Winnie
= 12 u - 2 u
= 10 u
10 u = 50
1 u = 50 ÷ 10 = 5
Number of sweets that Winnie had at first
= 2 u
= 2 x 5
= 10
Answer(s): 10
