Jack, Peter and Luke sold some pens. Luke sold 40% of the total number of pens sold by Peter and Jack. Jack sold 25% of the total number of pens sold by Peter and Luke. Jack sold 44 less pens than Peter. Find the total number of pens sold by all the boys.
| Jack |
Peter |
Luke |
Total |
| 5x5 |
2x5 |
7x5 |
| 1x7 |
4x7 |
5x7 |
| 7 u |
18 u |
10 u |
35 u |
40% =
40100 =
25 25% =
25100 =
14 The total number of pens is repeated. Make the total number of pens the same. LCM of 7 and 5 is 35.
Number of less pens that Jack sold than Peter
= 18 u - 7 u
= 11 u
11 u = 44
1 u = 44 ÷ 11 = 4
Total number of pens sold
= 35 u
= 35 x 4
= 140
Answer(s): 140
