Zane, Michael and Julian sold some staplers. Julian sold 40% of the total number of staplers sold by Michael and Zane. Zane sold 30% of the total number of staplers sold by Michael and Julian. Zane sold 115 less staplers than Michael. Find the total number of staplers sold by all the boys.
| Zane |
Michael |
Julian |
Total |
| 5x13 |
2x13 |
7x13 |
| 3x7 |
10x7 |
13x7 |
| 21 u |
44 u |
26 u |
91 u |
40% =
40100 =
25 30% =
30100 =
310 The total number of staplers is repeated. Make the total number of staplers the same. LCM of 7 and 13 is 91.
Number of less staplers that Zane sold than Michael
= 44 u - 21 u
= 23 u
23 u = 115
1 u = 115 ÷ 23 = 5
Total number of staplers sold
= 91 u
= 91 x 5
= 455
Answer(s): 455
