In the bookstore,
16 of the books sold were Math books.
15 of the remaining books sold were Chinese books. The ratio of the number of Chinese books sold to the number of English books was 15 : 8. The number of Science books sold was 104. How many books were sold altogether?
| Math |
Remaining books |
Total |
| 1x15 |
5x15 |
6x15 |
| |
Chinese |
English |
Science |
|
| |
1x15 =
15 u |
4x15 =
60 u |
|
| |
15 |
8 |
|
|
| 15 u |
15 u |
8 u |
52 u |
90 u |
The number of Chinese books is repeated. Make the number of Chinese books the same. LCM of 1 and 15 is 15.
Number of Science books = 52 u
52 u = 104
1 u = 104 ÷ 52 = 2
Total number of books sold
= 90 u
= 90 x 2
= 180
Answer(s): 180
