Quantitative Aptitude - Arithmetic Ability Questions

In an isosceles triangle ABC, AB = AC, XY || BC. If ∡A = 30, then ∡BXY =

In the given figure, if AD = 12 cm, AE = 8 cm and EC = 14 cm, then what is the value of BD in cm?

The mean of 12 observations is 15. One more observation is included and the new mean becomes 16. The 13th observation is

Raghavendra sells a machine for Rs 43 lakhs at a loss. Had he sold it for Rs 52 lakh, his gain would have been 5 times the former loss. Find the cost price of the machine.

If x2 + ax + b, when divided by x - 3, leaves a remainder of 22 and x2 + bx +a, when divide by x - 3, leaves a remainder of 24, then a + b = ?

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

If a-1a=1, then a2 + 1a2 ?

Find equation of the perpendicular bisector of segment joining the points (2,­6) and (4,0)?