Quantitative Aptitude - Arithmetic Ability Questions

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?

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

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?

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

Sum of lengths of all edges of a cube is 84 cm, find its volume?

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

If a - b = 10 and ab =-21, then what is the value of a3-b3 ?

Calculate the value of 61681x61681-31681x3168130000