Jean and Usha collected beads. Jean gave 25% of her beads to Usha. As a result, Usha's beads increased by 60%. If Jean had 36 beads left, find the total number of beads the two girls had at first.
| |
Jean |
Usha |
Comparing the change
in Usha's beads |
| Before |
4x3 =
12 u |
|
5x1 =
5 u |
| Change |
- 1x3 =
- 3 u |
+ 1x3 =
+ 3 u |
+ 3x1 =
+ 3 u |
| After |
3x3 =
9 u |
|
8x1 =
8 u |
25% =
25100 =
14 60% =
60100 =
35 The number of beads that Jean gave to Usha is repeated. Make the number of beads that Jean gave to Usha the same. LCM of 1 and 3 is 3.
Number of beads that Jean had in the end = 9 u
9 u = 36
1 u = 36 ÷ 9 = 4
Number of beads that Jean and Usha had at first
= 12 u + 5 u
= 17 u
= 17 x 4
= 68
Answer(s): 68
