Gabriel, Ivan and John sold some markers. John sold 20% of the total number of markers sold by Ivan and Gabriel. Gabriel sold 10% of the total number of markers sold by Ivan and John. Gabriel sold 258 less markers than Ivan. Find the total number of markers sold by all the boys.
| Gabriel |
Ivan |
John |
Total |
| 5x11 |
1x11 |
6x11 |
| 1x6 |
10x6 |
11x6 |
| 6 u |
49 u |
11 u |
66 u |
20% =
20100 =
15 10% =
10100 =
110 The total number of markers is repeated. Make the total number of markers the same. LCM of 6 and 11 is 66.
Number of less markers that Gabriel sold than Ivan
= 49 u - 6 u
= 43 u
43 u = 258
1 u = 258 ÷ 43 = 6
Total number of markers sold
= 66 u
= 66 x 6
= 396
Answer(s): 396
