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 ? Choose the correct answer:
A) 412
B) 512
C) 312
D) 112
E) 122
Let total number of children be x.   Then, (x) x 1/8x = (x/2)x 16   = x = 64.   Number of notebooks = 1/8 x2 = (1/8	x 64 x 64)	= 512.   Answer is 512.
<result>B</result>
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 ?