Quantitative Aptitude - Arithmetic Ability Questions

If a+1a2 = 3, then the value of  a3+1a3 is

If x = 3+13, then the value of x-12642x-1x-233 is

If a1-2a+b1-2b+c1-2c = 12, then 11-2a+11-2b+11-2c value is

If a(x + y) = b(x - y) = 2ab, then the value of 2(x2 + y2)

In an army selection process, the ratio of selected to unselected was 6:1. If 90 less had applied and 30 less selected, the ratio of selected to unselected would have been 8:1. How many candidates had applied for the process?

If the radius of a circle is increased by 16%, its area increases by

A, B and C invest to start a restaurant. The total investment was Rs 3 lakhs. B invested Rs 50,000 more than A and C invested Rs 25,000 less than B. If the profit at the end of the year was Rs 14,400 then what is C's share of the profit (in Rs)?

A mobile plan costs Rs. 32 for 6 minutes. What is the approximate cost, in rupees, for 4 minutes?