Quantitative Aptitude - Arithmetic Ability Questions

Robin can do a work in 10 hours. Pradeep and Robin together can do the same work in 4 hours. Pradeep and Nitin together can do the samework in 5 hours. In how many hours Nitin alone can complete the same work?

The difference between the compound interest compounding half yearly for 1 year and the simple interest for 1 year on a certain sum of money lent out at 8% per annum is Rs 64. What is the sum (in Rs)?

What is the average of all the one digit and two digit natural numbers?

If 3a=4b=6c and a+b+c=279 then a2+b2+c2 is equal to

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

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

Find out the odd word/letters/number/number pair from the given alternatives.

The two equal sides of an isosceles triangle is 20 cm each and the third side is 30 cm. What is the area(in cm2) of the triangle?