Brandon, Xavier and Rael sold some pens. Rael sold 10% of the total number of pens sold by Xavier and Brandon. Brandon sold 25% of the total number of pens sold by Xavier and Rael. Xavier sold 170 more pens than Rael. Find the total number of pens sold by all the boys.
| Brandon |
Xavier |
Rael |
Total |
| 10x5 |
1x5 |
11x5 |
| 1x11 |
4x11 |
5x11 |
| 11 u |
39 u |
5 u |
55 u |
10% =
10100 =
110 25% =
25100 =
14 The total number of pens is repeated. Make the total number of pens the same. LCM of 11 and 5 is 55.
Number of more pens that Xavier sold than Rael
= 39 u - 5 u
= 34 u
34 u = 170
1 u = 170 ÷ 34 = 5
Total number of pens sold
= 55 u
= 55 x 5
= 275
Answer(s): 275
