In the store,
15 of the books sold were Science books.
12 of the remaining books sold were Chinese books. The ratio of the number of Chinese books sold to the number of Math books was 4 : 3. The number of English books sold was 11. How many books were sold altogether?
Science |
Remaining books |
Total |
1x2 |
4x2 |
5x2 |
|
Chinese |
Math |
English |
|
|
1x4 = 4 u |
1x4 = 4 u |
|
|
4 |
3 |
|
|
2 u |
4 u |
3 u |
1 u |
10 u |
The number of Chinese books is repeated. Make the number of Chinese books the same. LCM of 1 and 4 is 4.
Number of English books = 1 u
1 u = 11
1 u = 11 ÷ 1 = 11
Total number of books sold
= 10 u
= 10 x 11
= 110
Answer(s): 110