Quantitative Aptitude - Arithmetic Ability Questions

x and y are two numbers such that their mean proportion is 9 and third proportion is 243. What is the value of x and y?

A watch having marked price as Rs 8400 is sold for Rs 5040 after two successive discounts. If the first discount is 25% then what is the second discount percentage?

If a2b+c=b2C+a=a2a+b=1 then 11+a+11+b+11+c is

∆ABC is right angled at B. If m∠A = 30°., then Sec C =?

If p/q = (x+3)/(x-3), then what is the value of p2+q2p2-q2 ?

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

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

The average age of 120 members of a society is 60.7 years. By addition of 30 new members, the average age becomes 56.3 years. What is the average age (in years) of newly joined members?