Quantitative Aptitude - Arithmetic Ability Questions

The sum of a non-zero number and twenty times its reciprocal is 9. What is the number?

If 5 -­ 5x < 4 -­ x and 2 -­ x < 6 -­ 4x, then x can take which of the following values?

The variance of a set of data is 121. Then the standard deviation of the data is

If [4(2x/5 - 3/2)]/3 + 7/5 = 37/5, then what is the value of x?

What is the reflection of the point (5, 2) in the line x = -3?

Find out the odd word/letters/number/number pair from the given alternatives.

Sunil started his journey at 2:33:34 p.m. and reached the destination at 4:43:45p.m. Anil started the journey 45 min 27 secs after Sunil and reached the destination 37 mins 16 secs after him. How long did Anil take to complete his journey?

What will be the value of a3+b3, if a2+b2=32 and a+b=8 ?