Quantitative Aptitude - Arithmetic Ability Questions

If a = 5, b = 4, c = 8 then find the value of (a3 + b3 + c3 - 3abc)/(ab + bc + ca - a2 - b2 - c2)

If n + n2 + n4 + n8 = 45, then find the value of 'n' which will satisfy the equation.

The order of rotational symmetry of a rectangle is

The 4th and 7th term of an arithmetic progression are 11 and -4 respectively. What is the 15th term?

In the following question, select the odd letter/letters from the given alternatives.

Two persons are on either side of a temple, 75 m high, observe the angle of elevation of the top of the temple to be 30 and 60 deg respectively. The distance between the persons is

If sinθ+ cosecθ=2, then the value of sin-7∅+cosec7∅ is

If 3P/7 = 4Q/11, then what is the ratio of P and Q respectively?