Quantitative Aptitude - Arithmetic Ability Questions

If P = 7 + 4√3 and PQ = 1, then what is the value of 1/P2 + 1/Q2?

The cost price of an article is x. It is marked up by 150%. It is sold at Rs 600 after giving 40% discount. What is x (in Rs)?

What is the compound interest earned on Rs 80,000 at 40% per annum in 1 year compounded quarterly?

The marked price of an article is Rs 960 and it is sold at a discount of Rs 192. What is the discount percentage?

Find the odd word/letters/number pair from the given alternatives.
(A) 52­61 (B) 43­54 (C ) 72­83 (D) 18­29

What is the value of (91 + 92 + 93 + ......... +140)?

If 2secA - (1 + sinA)/cosA = x, then the value of x is

Gautam goes to office at a speed of 12 kmph and returns home at 10 kmph.His average speed is