Quantitative Aptitude - Arithmetic Ability Questions

The average revenues of 11 consecutive years of a company is Rs 69 lakhs. If the average of first 6 years is Rs 64 lakhs and that of last 6 years is Rs 76 lakhs, what is the revenue for the 6th year?

The number of trees in a town is 17640. If the numbers of trees increases annually at the rate of 5%, then how many trees were there 2 years ago?

If the cost price of an article is Rs x . It is marked up by 100%. It is sold at Rs 1,200 after giving 20% discount. What is value of x?

ABCDEF is a regular hexagon of side 12 cm. What is the area (in cm2) of the triangle ECD?

Makarand works 2 times as fast as Samarjit. If Samarjit can complete a job alone in 27 days, then in how many days can they together finish the job?

A missile travels at 1116 km/h. How many metres does it travel in one second?

In a circle of radius 8 cm, AB and AC are two chords such that AB = AC = 12 cm. What is the length of chord BC?

Direction: What should come in the place of question mark (?) in the following number series? 24, 25, ?, 41, -8, 73