Quantitative Aptitude - Arithmetic Ability Questions

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

A book is sold at three successive discounts of 20%, 20% and 10%. What is the net discount (in percentage)?

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

To cover a distance of 234 km in 1.6 hours what should be the average speed of the car in meters/second?

If the curved surface area of a right circular cone is 3080 sq cm and its slant height is 35 cm, find its total surface area?

65.The angles of elevation of an aeroplane flying vertically above the ground, as observed from the two consecutive stones, 1 km apart; are 45o and 60o. The height of the aeroplane from the ground is

The ten's digit of a 2-digit number is greater than the units digit by 7. If we subtract 63 from the number, the new number obtained is a number formed by interchange of the digits. Find the number.

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.