Quantitative Aptitude - Arithmetic Ability Questions

The least number to be added to 435 to make it a perfect square is

For the figure given below, find the value (in degrees) of 2∠A + ∠B.

The co-ordinates of the centroid of a triangle ABC are (2 , 2). What are the co-ordinates of vertex C if co-ordinates of A and B are (7 , -1) and (1 , 2) respectively?

Find the total surface area (in cm2) of a cuboid of length, breadth and height of 10.5 cm, 8 cm and 9 cm respectively.

What is the curved surface area (in cm²) of a hemisphere of diameter 42 cm?

Two persons are on either side of a temple, 75 m high, observe the angle of elevation of the top of the temple to be 30 and 60 deg respectively. The distance between the persons is

Product of digits of a 2-digit number is 18. If we add 63 to the number, the new number obtained is a number formed by interchange of the digits. Find the number.

What is the value of 643 × 121289 - 169 ?