Quantitative Aptitude - Arithmetic Ability Questions

Which of the following can't be the unit's digit of a perfect square?

The volume of a cuboid is 320 cubic cm. Find its total surface area if its length and breadth are 10 cm and 8 cm respectively?

ΔABC is isosceles having AB = AC and ∠A = 40°. Bisectors PO and OQ of the exterior angles ∠ABD and ∠ACE formed by producing BC on both sides, meet at O. Then the value of ∠BOC is

N invented Rs.20,000 in a business. Six months later, C joined him with Rs. 10,000. At the end of the year, the profit was Rs. 10,000. What should be the share of N?

A cylindrical vessel of radius 4 cm contains water . A solid sphere of radius 3 cm is dipped into the water until it is completely immersed . The water level in the vessel will rise by

Suppose that the medians BD, CE and AF of a triangle ABC meet at G. Then AG: GF is

AD is the Median of Δ ABC. If O is the centroid and AO = 10 cm then OD is

At least two pairs of consecutive angles are congruent in a _____.