NIFT UG 2011 Question Paper with solutions

Question : 30 of 150

Marks: +1, -0

A man reads 3/8 of a book on a day and 4/5 of the remainder, on the second day. If the number of pages still unread is 40, how many pages did the book contain?

300
315
320
None of these

Validate

Solution:

Let the total pages = x
then,

{3x}/8+4/5×{5x}/8+40=x

x-({3x}/8+x/2)=40

⇒x=320

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