Quantitative Aptitude - Arithmetic Ability Questions

Select the odd word/letters/number/number pair from the given alternatives.

Ramu can row 9 kmph in still water. It takes him twice as long to row up as to row down. Find the rate of stream.

The sum of a number and 4 times its reciprocal is 5. What is the number?

If 7x - [3(2x - 3)]/2 = 1/2, then what is the value of x?

If the population of a town increases by 25% in the first year and increases by 36% in the second year, then what is the average rate (in percentage)of increase in the population?

Which of the following quadratic equations has real roots?

An isosceles triangle ABC has sides AB = AC. If side BA is produced to D in such a manner that AC=AD. Then what will the measure of the angle BCD?

The diagonal of a cube is 192 cm. Its volume in cm3 will be