Dylan, Carl and Jack sold some pens. Jack sold 20% of the total number of pens sold by Carl and Dylan. Dylan sold 25% of the total number of pens sold by Carl and Jack. Carl sold 112 more pens than Jack. Find the total number of pens sold by all the boys.
| Dylan |
Carl |
Jack |
Total |
| 5x5 |
1x5 |
6x5 |
| 1x6 |
4x6 |
5x6 |
| 6 u |
19 u |
5 u |
30 u |
20% =
20100 =
15 25% =
25100 =
14 The total number of pens is repeated. Make the total number of pens the same. LCM of 6 and 5 is 30.
Number of more pens that Carl sold than Jack
= 19 u - 5 u
= 14 u
14 u = 112
1 u = 112 ÷ 14 = 8
Total number of pens sold
= 30 u
= 30 x 8
= 240
Answer(s): 240
