Ryan, Simon and Jeremy sold some pens. Jeremy sold 30% of the total number of pens sold by Simon and Ryan. Ryan sold 25% of the total number of pens sold by Simon and Jeremy. Ryan sold 240 less pens than Simon. Find the total number of pens sold by all the boys.
| Ryan |
Simon |
Jeremy |
Total |
| 10x5 |
3x5 |
13x5 |
| 1x13 |
4x13 |
5x13 |
| 13 u |
37 u |
15 u |
65 u |
30% =
30100 =
310 25% =
25100 =
14 The total number of pens is repeated. Make the total number of pens the same. LCM of 13 and 5 is 65.
Number of less pens that Ryan sold than Simon
= 37 u - 13 u
= 24 u
24 u = 240
1 u = 240 ÷ 24 = 10
Total number of pens sold
= 65 u
= 65 x 10
= 650
Answer(s): 650
