Quantitative Aptitude - Arithmetic Ability Questions

The value of 1/64 is equal to square of

What is the value of 96+21624?

Select the odd number from the given alternatives.

An 80 litre mixture of water and acid contains 20% acid. How much acid should be added to make the acid 60% in the new mixture?

The average of first 20 multiples of 12 is

Six year ago Parvez’s age was same as the present age of Manish. If the present age of Parvez is one-fourth more than that of Manish's present age, then in how many years will Parvez’s age become double of Manish’s present age?

The first and last terms of an arithmetic progression are 37 and ­18. If the sum of the series is 114, then it has how many terms?

2*[­0.3(1.3 + 3.7)] of 0.8 = ?