Flynn, Jenson and David sold some files. David sold 40% of the total number of files sold by Jenson and Flynn. Flynn sold 20% of the total number of files sold by Jenson and David. Jenson sold 55 more files than David. Find the total number of files sold by all the boys.
| Flynn |
Jenson |
David |
Total |
| 5x6 |
2x6 |
7x6 |
| 1x7 |
5x7 |
6x7 |
| 7 u |
23 u |
12 u |
42 u |
40% =
40100 =
25 20% =
20100 =
15 The total number of files is repeated. Make the total number of files the same. LCM of 7 and 6 is 42.
Number of more files that Jenson sold than David
= 23 u - 12 u
= 11 u
11 u = 55
1 u = 55 ÷ 11 = 5
Total number of files sold
= 42 u
= 42 x 5
= 210
Answer(s): 210
