UPSC Civil Services 2018 Prelims General Studies Paper II

Question : 57 of 80

Marks: +1, -0

A bookseller sold 'a' number of Geography textbooks at the rate of ₹x per book, a+2 ' number of History textbooks at the rate of ₹(x+2) per book and a−2 number of mathematics textbooks at the rate of ₹(x−2) per book. What is his total sale in ₹?