Quantitative Aptitude - Arithmetic Ability Questions

Find the value of 6813+6413314

All rational numbers are ____ numbers.

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

If 3√2 + √18 + √50 = 15.55, then what is the value of √32 + √72?

From a point P, the angle of elevation of a tower is such that its tangent is 3/4. On walking 560 metres towards the tower the tangent of the angle of elevation of the tower becomes 4/3. What is the height (in metres) of the tower?

If 3+12=x+3y, then the x+y is 

In ΔABC measure of angle B is 90 deg. If cosA = 5/13, and AB = 10 cm, then what is the length (in cm) of side BC?

In the following question, select the odd word pair from the given alternatives.