Quantitative Aptitude - Arithmetic Ability Questions

In what time will Rs.4400 become Rs.4576 at 8% per annum interest compounded half-yearly?

If R019 is divisible by 11, find the value of the smallest natural number R?

One pipe can fill an empty cistern in 4 hours while another can drain the cistern when full in 10 hours. Both the pipes were turned on when the cistern was half-empty. How long will it take for the cistern to be full?

If α and β are the roots of equation x2 – x + 1 = 0, then which equation will have roots α3 and β3?

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

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

Which of the numbers given below is NOT rational?

What is the sum of the first 11 terms of an arithmetic progression if the first term is -31 and last term is 29?