Quantitative Aptitude - Arithmetic Ability Questions

Ram Naresh got two successive discounts, a bag with a list price of Rs.400 is available at Rs. 160. If the second discount is 20%, find the first discount.

If 2x + (9/x) = 9, then what is the minimum value of x2+1x2 = ?

What is the length of the arc whose central angle is 30° and radius of the circle is 21 cm?

Selling price of an article is Rs 27692 and loss percentage is 14%. If the selling price is Rs 37352, then what will be the profit percentage?

A trader had 12 quintals of wheat. He sold a part of it at 13% profit and the rest at 23% profit, so that he made a total profit of 17 %. How much wheat did he sell at 23% profit?

Car B is running twice as fast as car A. If car A covers a distance of 90 km in 1 1/2 hrs, what is the speed of car B?

10% discount is offered on an item. By applying a promo code the customer wins 20% cash back. What is the effective discount?

What is the value of 1+aa1/2+a-1/2-a1/2+a-1/21+a+a-1/2 ?