How many books are in her locker?

Question

In Riji's locker, one third of the books are novels, and one third are science, she also has 2 geography books, 3 history, and 1 social studies book. How many books are in her locker?

Answer 1

In Riji's locker, one third of the books are novels, and one third are science, she also has 2 geography books, 3 history, and 1 social studies book. How many books are in her locker?

 

(n) +  (s) + (2+3+1) = 

So, n = 6 and s = 6, because if 1/3 of the books = 6, then any 1/3 = 6

 

(6) + (6) + (6) = 18 books