Quantitative Aptitude - Arithmetic Ability Questions

If tanA -­ tanB = X, then the value of X is

∆DEF is right angled at E. If cosD = 5/13, then what is the value of tanF?

Which one is the largest among the fractions (5/113), (7/120), (13/145) and (17/160)?

Δ DEF is right angled at E. If m ∠D = 30°. What is the length (in cm) of DE, if EF = 2√3 cm?

The length of the diagonal and the breadth of a rectangle are 17 cm and 8 cm respectively. Find its perimeter (in cm).

The line passing through (-2,5) and (6,b) is perpendicular to the line 20x + 5y = 3. Find b?

The price of an article is discounted by 25%, to restore to its original value, the new price must be increased by

A shopkeeper marks up his wares by 60% and offers 25% discount. What will be the selling price (in Rs) if the cost price is Rs 1600?