Quantitative Aptitude - Arithmetic Ability Questions

A book is sold at three successive discounts of 20%, 20% and 10%. What is the net discount (in percentage)?

In ∆ABCif the median AD=1/2 BC, then ∠BAC is

In a triangle PQR, PX, QY and RZ be altitudes intersecting at O. If PO = 6 cm, PX = 8 cm and QO = 4 cm, then what is the value (in cm) of QY?

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

If [7(5x/3 - 3/2)]/2 + 3/2 = 1/4, then what is the value of x?

If the simple interest on Rs. 400 for 10 years is Rs. 280, then rate of interest per annum is

If 35% of (x + y) = 40% of (x – y), then x is what percentage of y?

If the shopkeeper sells an item at Rs 4400 which is marked as Rs 5000, then what is the discount that he is offering?