Quantitative Aptitude - Arithmetic Ability Questions

ΔABC is right angled at B. BD is an altitude. AD = 9 cm and DC = 16 cm. What is the value of BD (in cm)?

The cost of levelling a circular field at 50 Paise per square metre is Rs 7700. The cost (in Rs) of putting up a fence all round it at Rs 1.20 per meter is ( Use π = 22/7)

Calculate the area (in cm2) of a circle of radius 17.5 cm.

The length of the diagonal of a square is 10 cm. What is area of this square?

While selling a watch, a shop-­keeper gives a discount of 5%. If he gives a discount of 7%, he earns Rs.15 less as profit. The marked price of the watch is

What is 15% of 34 ?

If cos3A = X, then value of X?

In the following question, select the odd letter/letters from the given alternatives.