Aptitude and Reasoning Questions

In the following question, which one set of letters when sequentially placed at the gaps in the given letter series shall complete it?

r_pr_p_q_r_p

What is the diameter (in cm) of a sphere of surface area 6.16 sq cm?

The length of the radius of a circle with centre O is 5 cm and the length of the chord AB is 8 cm. The distance of the chord AB from the point O is

The mean of the data 3, 10, 10, 4, 7, 10, 5 is

A water tank has two holes. The 1st hole alone makes the tank empty in 3 min and 2nd hole alone makes the tank empty in 5 min. If water leaks out at a constant rate, how long in minutes does it take if both the holes together empty the tank?

In the following question, four groups of three numbers are given. In each group the second and third number are related to the first number by a Logic/Rule/Relation. Three are similar on basis of same Logic/Rule/Relation. Select the odd one out from the given alternatives.

The angle of elevation of the top of a pillar from the foot and the top of a building 20 m high, are 60° and 30° respectively. The height of the pillar is

Consider the given statements to be true and decide which of the suggested courses of action logically `follows(s) on the basis of the information given in the statements.

Statements :

The pollution and air quality in Delhi is beyond the acceptable level. This is due to industrial and automobile exhaustion.

Course of action :

1. Automobiles should be divided into groups to be run only on odd and even days, respectively.

2. The government should stop the registration of new factories and vehicles.