Quantitative Aptitude - Arithmetic Ability Questions

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

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

What is the area (in sq cm) of a rectangle if its diagonal is 25 cm and one of its sides is 24 cm?

If 8x/3 + [7(5 - 2x/3)]/2 = 1/2 , then what is the value of x?

A sum of Rs 6000 becomes Rs 7200 in 2 years, when invested in a scheme of simple interest. If the same sum is invested in a scheme of compound interest with same yearly interest rate (compounding of interest is done yearly), then what will be the amount (in Rs) after 3 years?

What is 15% of 34 ?

A telephone bill costs Rs.13 for 19 minutes. What is the cost in rupees for 15 minutes 50 seconds?(rounded to one decimal)

If P + 1P+2 = 1, then the value of P+23+1P+23-3 ?