Quantitative Aptitude - Arithmetic Ability Questions

If cosec2 θ = 625/576, then what is the value of [(sin θ – cos θ)/(sin θ + cos θ)]?

If tan(A/2) = x, then the value of x is

If a2sec2x - b2tan2x = c2 then the value of sec2x + tan2x is equal to (assume b2 ≠ a2 )

Marked price of an item is Rs 200. On purchase of 1 item discount is 22%, on purchase of 4 items discount is 33%. Rabia buys 5 items, what is the effective discount?

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

A truck moves at the speed of 90 km/hr after repairing and moves at the speed of 80 km/hr before repairing. It covers x distance in 8 hours after repairing. How much time (in hours) will it take to cover 4x distance before repairing?

If sinθ+cosecθ=2, the value of sinnθ+cosecnθ is

If ab = 21 and a+b2a-b2 = 254,then the value of a2+b2+3ab