Rael, Japheth and Howard sold some notebooks. Howard sold 35% of the total number of notebooks sold by Japheth and Rael. Rael sold 20% of the total number of notebooks sold by Japheth and Howard. Rael sold 220 less notebooks than Japheth. Find the total number of notebooks sold by all the boys.
| Rael |
Japheth |
Howard |
Total |
| 20x2 |
7x2 |
27x2 |
| 1x9 |
5x9 |
6x9 |
| 9 u |
31 u |
14 u |
54 u |
35% =
35100 =
720 20% =
20100 =
15 The total number of notebooks is repeated. Make the total number of notebooks the same. LCM of 27 and 6 is 54.
Number of less notebooks that Rael sold than Japheth
= 31 u - 9 u
= 22 u
22 u = 220
1 u = 220 ÷ 22 = 10
Total number of notebooks sold
= 54 u
= 54 x 10
= 540
Answer(s): 540
