Linda, Jean and Sabrina had a total of 176 beads. Linda gave
18 of her beads away. Sabrina gave away 2 times as many beads as Linda and Jean gave away 30 beads. In the end, they had 107 beads left. How many beads did Jean and Sabrina have in total in the end?
|
Linda |
Jean |
Sabrina |
Total |
Before |
8 u |
? |
? |
176 |
Change |
- 1 u |
- 30 |
- 2 u |
- 69 |
After |
7 u |
? |
107 |
Number of beads that Sabrina gave away
= 2 x 1 u
= 2 u
Number of beads given away
= 1 u + 30 + 2 u
= 3 u + 30
3 u + 30 = 176 - 107
3 u = 69 - 30
3 u = 39
1 u = 39 ÷ 3 = 13
Number of beads that Jean and Sabrina had in the end
= 107 - 7 u
= 107 - 7 x 13
= 107 - 91
= 16
Answer(s): 16