Ticket for an adult is Rs 1600 and a child is Rs. 600.  1 child goes free with two adults. If a group has 17 adults and 7 children what is the discount the group gets? 

Gopal and Ravi contracted a work for Rs 480. If Gopal can do that work in 15 days and Ravi can complete that same work in 10 days. He completed this work with Mahesh in 5 days, then tell me how much money Mahesh got.

If the four-digit number 463y is divisible by 7, then what is the value of y?

A bank offers 15 % compound interest per half-year. A customer deposits Rs 2400 each on 1 January and 1st July of a year. At the end of the year, the amount he would have gained by way of interest is –

Anoop sells a book to Mayank at a profit of 20% and Mayank sells this book to Siddharth at a profit of 25%. Now Siddharth sells this book at a loss of 10% to Shishir. At what percentage loss should Shishir sells this book now so that his SP becomes equal to Anoop’s CP?