In the stationery kiosk,
13 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 English books was 11 : 3. The number of Math books sold was 64. How many books were sold altogether?
| Science |
Remaining books |
Total |
| 1x11 |
2x11 |
3x11 |
| |
Chinese |
English |
Math |
|
| |
1x11 =
11 u |
1x11 =
11 u |
|
| |
11 |
3 |
|
|
| 11 u |
11 u |
3 u |
8 u |
33 u |
The number of Chinese books is repeated. Make the number of Chinese books the same. LCM of 1 and 11 is 11.
Number of Math books = 8 u
8 u = 64
1 u = 64 ÷ 8 = 8
Total number of books sold
= 33 u
= 33 x 8
= 264
Answer(s): 264
