The given pictograph tells us about the kind of books read by Mohan. Study the pictograph carefully and answer the following question. How many more detective books than fantasy book does he read?
So number of detective books
= 4× 4 = 16
Number of fantasy books
= 4× 1 = 4
Hence ,number of detective books more than fantasy books
= number of detective books - number of fantasy books
= 16 - 4 = 12.