Quantitative Aptitude - Arithmetic Ability Questions

Rohit wants to earn 21% profit on a belt after offering 45% discount. By how much percentage more should he mark the price of his article above the costprice?

Rahul nd Raghav are 110 km apart from each other and they started horse-riding towards each other at same time at a speed of 20 kmph and 24 kmph. After how many hours of riding will they be a distance of 22 km?

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

What is the area (in sq cm) of a rectangle of perimeter 90 cm and breadth 20 cm?

ABCD is square and CDE is an equilateral triangle outside the square. What is the value (in degrees) of ∠BEC?

Calculate the value of 61681x61681-31681x3168130000

Solution A contains 10% acid and solution B contains 30% acid. In what ratio should solution A be mixed with Solution B to obtain a mixture with 25% acid?

Flight A usually takes 1 hour more than Flight B to travel a distance of 7200 km. Due to engine trouble speed of flight B falls by a factor of 1/6th, so it takes 36 minutes more than Flight A to complete the same journey? What is the speed of Flight A (in km/hr)?