Harry, Brandon and Zane sold some notebooks. Zane sold 10% of the total number of notebooks sold by Brandon and Harry. Harry sold 20% of the total number of notebooks sold by Brandon and Zane. Brandon sold 387 more notebooks than Zane. Find the total number of notebooks sold by all the boys.
| Harry |
Brandon |
Zane |
Total |
| 10x6 |
1x6 |
11x6 |
| 1x11 |
5x11 |
6x11 |
| 11 u |
49 u |
6 u |
66 u |
10% =
10100 =
110 20% =
20100 =
15 The total number of notebooks is repeated. Make the total number of notebooks the same. LCM of 11 and 6 is 66.
Number of more notebooks that Brandon sold than Zane
= 49 u - 6 u
= 43 u
43 u = 387
1 u = 387 ÷ 43 = 9
Total number of notebooks sold
= 66 u
= 66 x 9
= 594
Answer(s): 594
