Quantitative Aptitude - Arithmetic Ability Questions

What is the length of the arc whose central angle is 30° and radius of the circle is 21 cm?

At 15% discount the selling price of a microwave oven is Rs 34000, what is the selling price if the discount is 37.5%?

If a + b + c = 11 and ab + bc + ca = 17, then what is the value of a3 + b3 + c3 – 3abc?

∆PQR is right angled at Q. If m∠R = 45°, then find the value of (cosecP - √3/2)

If x2+1x2 = 2, then the value of x - 1x is

If the radius of a circle is increased by 31% its area increases by ______.

What is the smplified value of Sin2A/1+Cos2A ?

What will come in the place of question mark (?) in the following question (You do not have to calculate the exact value)?

53.01 - 345.02 ÷ 22.99 = 2 ×(?)