CSC Company Numerical Ability Profit and Loss

A shopkeeper who deals in books sold a book at 16% loss. Had she charged an additional Rs.60 while selling it , her profit would have been 14%. Find the cost price, in rupees, of the book.

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CSC Other Question

find out the wrong number in the given sequence of numbers
15,16,34,105,424,2124,12756
A toy train crosses 210 and 122 m long tunnels in 25 and 17 seconds respectively. Find the length of train and speed of train.