# Category Archives: QA – Placement Quizzes

Calculate the sum of given series: log1010 + log10102 + … + log1010n (A) (B) (C) (D) Answer: (D)Explanation: Rewriting the expression as 1 +… Read More
If the average of the given 7 consecutive numbers is x. Now, the next three numbers are also added, what effect will it have on… Read More
A tennis ball is initially dropped from a building of height 180 m. After striking the ground, it rebounds (3/5)th of the height from which… Read More
For n positive integers, if their product is nn, then what will be their sum?  (A) Equal to n+(1/n) (B) Equal to n (C) A… Read More
A man is watching from the top of a tower a boat speeding away from the tower. The boat makes an angle of depression of… Read More
Amit is standing at a point P is watching the top of a tower, which makes an angle of elevation of 45° with Amit\’s eye.… Read More
From a point A on a level ground, the angle of elevation of the top of a tower is 30 degrees. If the tower is… Read More
The angle of elevation of the sun, when the length of the shadow of a tree is 1/√3 times the height of the tree, is:… Read More
Given: The radii of two cones of copper and aluminium are in the ratio of 3:7, consider their volumes to be equal. Find the ratio… Read More
The volumes of two sphere are in the ratio of 64:27. The ratio of their surface areas is: (A) 1:2 (B) 2:3 (C) 9:16 (D)… Read More
Given: If three metallic spheres of iron, steel, and aluminium of radii 6 cm, 8 cm, and 10 cm are melted to form a single… Read More
Given: A welder has a solid piece of iron of dimensions 49 * 33 * 24 cm³ which he will be molding into a sphere.… Read More
Given: A cylindrical container of radius 4 cm contains some fluid. A solid sphere of radius 3 cm is lowered into the fluid until it… Read More
A solid metallic spherical ball of diameter 6 cm is melted and recast into a cone with diameter of the base as 12 cm. The… Read More
A hollow sphere of internal and external diameters 4 cm and 8 cm respectively is melted into a cone of base diameter 8 cm. The… Read More