Charlie, Luis and Billy sold some markers. Billy sold 30% of the total number of markers sold by Luis and Charlie. Charlie sold 25% of the total number of markers sold by Luis and Billy. Charlie sold 144 less markers than Luis. Find the total number of markers sold by all the boys.
| Charlie |
Luis |
Billy |
Total |
| 10x5 |
3x5 |
13x5 |
| 1x13 |
4x13 |
5x13 |
| 13 u |
37 u |
15 u |
65 u |
30% =
30100 =
310 25% =
25100 =
14 The total number of markers is repeated. Make the total number of markers the same. LCM of 13 and 5 is 65.
Number of less markers that Charlie sold than Luis
= 37 u - 13 u
= 24 u
24 u = 144
1 u = 144 ÷ 24 = 6
Total number of markers sold
= 65 u
= 65 x 6
= 390
Answer(s): 390
