In a stationery kiosk, the number of highlighters was
67 of the total number of highlighters and glues together. Glen sold the highlighters and glues in sets of 3 highlighters and 3 glues. After selling all the glues, he still had 150 highlighters left. How many glues were in the stationery kiosk were sold?
| |
Highlighters |
Glues |
| Before |
6x3 =
18 u |
1x3 =
3 u |
| Change |
- 3x1 =
- 3 u |
- 3x1 =
- 3 u |
| After |
150 |
0 |
Since all the glues were sold, the number of glues at first and the number of glues sold were the same. Make the number of glues at first and sold the same. LCM of 1 and 3 is 3.
Number of highlighters sold
= 18 u - 3 u
= 15 u
15 u = 150
1 u = 150 ÷ 15 = 10
Number of glues were sold
= 3 u
= 3 x 10
= 30
Answer(s): 30
