Quantitative Aptitude - Arithmetic Ability Questions

The cost of levelling a circular field at 50 Paise per square metre is Rs 7700. The cost (in Rs) of putting up a fence all round it at Rs 1.20 per meter is ( Use π = 22/7)

When x2+ax+b is divided by (x-1), the remainder is 15 and when x2+bx+a is divided by (x+1), the remainder is -1, then the value of a2+b2 is

What is the value of tan­ -240°?

If xy (x + y) = m, then the value of x3 + y3 + 3m is:

The average age of A and B is 18 years. After 3 years, C joins them and the average ages of A, B and C becomes 22 years. The age of C is ?

Both S.I. and C.I. is calculated with a similar rate of 10% per annum on a sum of rupees. If C.I. is calculated yearly for two years, then for what period must S.I. be evaluated such that S.I. = C.I.?

The sum of a fraction and 3 times its reciprocal is 19/4. What is the fraction?

Of the 5 numbers whose average is 72, the first is 1/8 times the sum of other 4. The first number is _____.