Quantitative Aptitude - Arithmetic Ability Questions

What is the HCF (highest common factor) of 77 and 275?

What number, from the following should be deducted from 1184 to make it exactly divisible by 21?

A student, by mistake, wrote 64 in place of 46 as a number at the time of finding the average of 10 given numbers & got the average as 50. The correct average of the numbers is

The average revenues of 9 consecutive years of a company is Rs 65 lakhs. If the average of first 5 years is Rs 60 lakhs and that of last 5 years is Rs 72 lakhs, find the revenue for the 5th year.

If a cylinder of radius 7 cm and height 9 cm is melted and constructed into a cone of the same radius, what will be the height of this cone?

Select the odd word/letters/number/number pair from the given alternatives.

If cos -4π/3 = x, then the value of x is

The upper part of a tree broken over by the wind make an angle of 60 deg with the ground. The distance between the root and the point where top of the tree touches the ground is 25 metres. What was the height (in metres) of the tree?