Quantitative Aptitude - Arithmetic Ability Questions

What is the value of sec -2π/3 ?

What is the equation of the line whose y-intercept is -3 and makes an angle of 45° with the positive x-axis?

Select the related word/letters/number from the given alternatives.
1 : 8 :: ? :64

A dealer allows a discount of 15%. A customer pays an amount of Rs. 318.75 for an article. At what price is the article listed?

What is the value of [sin (90– 10θ) – cos (p – 6θ)]/ [cos (p/2 – 10θ) – sin (p – 6θ)]?

Product of digits of a 2-digit number is 24. If we add 45 to the number, the new number obtained is a number formed by interchange of the digits.What is the original number?

The sum of thrice a number and twice its reciprocal is 97/4. What is the number?