Quantitative Aptitude - Arithmetic Ability Questions

The average runs conceded by a bowler in 5 matches is 45 and 15.75 in other 4 matches. What is the average runs conceded by the bowler in 9 matches?

The least number of square tiles of side 41 cms required to pave the ceiling of a room of size 15m 17cm long and 9m 2 cm broad is:

A taxi going at 90 km/hr takes 35 minutes to travel a certain distance. By how much should it increase its speed (in km/hr) to travel the same distance in 21 minutes?

Three electronic devices make a beep after every 48 sec, 72 sec and 108 sec respectively. They beeped together at 10 a.m. The time when they will next make a beep together at the earliest is

What is the simplified value of (cotA + tan B)/(cot B + tan A)?

If x = 1.1, then what is the value of 4x2 -4x + 1 ?

The price of an article is discounted by 25%, to restore to its original value, the new price must be increased by

Find the circumference (in cm) of a circle of radius 10.5 cm