Quantitative Aptitude - Arithmetic Ability Questions

In ΔDEF measure of angle E is 90 deg. If sinD = 15/17, and DE = 4cm, then what is the length (in cm) of side EF?

What is the equation of the line whose y­-intercept is 4 and making an angle of 45° with the positive x-­axis?

If a -­ b = 6 and ab =16, then a3 -­ b3 is

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

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

The angle of elevation of the top of a tower from two horizontal points (in opposite sides) at distances of 25 meter and 64 meter from the base of tower are x and 90° - x respectively . The height of the tower will be

If (8 - 10x) - (13x - 2) = -9, then the value of x is

A shopkeeper marks up his wares by 60% and offers 10% discount. What will be the selling price (in Rs) if the cost price is Rs 7500?