1.  Free notebooks were distributed equally among children of a class. The number of notebooks each child got was one-eighth of the number of children. Had the number of children been half, each child would have got 16 notebooks. Total how many notebooks were distributed ?
A. 256
B. 432
C. 512
D. 640
E. None of these

Answer: Option C

Explanation:

Let total number of children be x.

Then, x x 1 x = x x 16    x = 64.
8 2

Number of notebooks :

= 1 x2 = 1 x 64 x 64 = 512.
8 8