Quantitative Aptitude - Arithmetic Ability Questions

If θ is acute angle and sin(θ+18°)= 1/2, then the value of θ in circular measure is

ΔABC is right angled at B. If m ∠A = 60°, then what is the value of 1/√3 Cosec C?

What is the reflection of the point (-4, 3) in the line x = -2?

AB is a chord of the circle and its center is “O”. ON is perpendicular to AB. If the length of AB=20 cm, ON-(2√11) cm, find the radius (in cm) of the circle.

The sum of the digits of a 2­digit number is 17. If we add 9 to the number, the new number obtained is a number formed by interchange of the digits. Find the number.

Which of the following is the largest number among 2, 33, 4, 53

a, b and c are 3 values, such that a + b = 5, b + c = 7.5 and c + a = 8.5. What will be the average of these values?

Which of the following is correct?