Quantitative Aptitude - Arithmetic Ability Questions

If 3√2 + √18 + √50 = 15.55, then what is the value of √32 + √72?

A missile travels at 1278 km/h. How many metres does it travel in one second?

If a3 + 3a2 + 9a = 1, then what is the value of a3 + (3/a)?

ABCD is an isosceles trapezium such that AD||BC, AB = 5 cm, AD = 8 cm and BC = 14 cm. What is the area (in cm2) of trapezium?

The smallest number, which should be added to 756896 so as to obtain a multiple of 11, is

R and S started a business by investing Rs 165000 and Rs 195000 respectively for the same period of time. If R’s share in the profit earned by them is Rs 11000, then what is the total profit (in Rs) earned by both of them together?

If one angle of a triangle is equal to half the sum of the other two equal angles, then the triangle is

If 4x - 5y = -37 and 7x + y = -16, then x - y = ______