Quantitative Aptitude - Arithmetic Ability Questions

In the given series, how many 8s are there that are not divisible by the number to its left but completely divisible by the number to its right.

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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.

What is the third proportional to 10 and 25?

If x + 2(3-5x) > -1 - 2x < 5 - x/3; then the value of x is

What will be the value of r2+p2+s2-rp-ps-rs when r = 4, p = 2, s = 8?

A tower is 50 meters high.Its shadow is x metres shorter when the sun's altitude is 45° than when it is 30° . The value of x in metres is

Select the odd number from the given alternatives.