Quantitative Aptitude - Arithmetic Ability Questions

What is the mean of the first five Triangular Numbers?

What is the equation of the line which passes through the points (3,­2) and (5,3)?

On dividing 221a2b2 by 13b2, we get _____.

If (cotAcotB - 1) / (cotB + cotA) = x, then the value of x is

HCF of two numbers is 19 and their LCM is 665. If one of the number is 95, find the other.

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

The average of 5 consecutive numbers is 50%, then difference between 'product of largest and smallest number' with 'product of fourth and second number' is

Alarms from 3 different clocks sound after every 2, 4 and 6 hours, respectively. If the clocks are startedat the same 6 time, how many times do the alarms ring together in 3 days?