Quantitative Aptitude - Arithmetic Ability Questions

If cosθ = x2-y2x2+y2, then the value of cotθ is

What is the equation of the line passing through the point (1,3) and making an angle of -45° with the positive x-axis?

What are the co­ordinates of the centroid of a triangle, whose vertices are A(­2,­5), B(4,­4) and C(7,3)?

What is the third proportional to 10 and 25?

Select the odd word/letters/number/number pair from the given alternatives.

If 3 dozen guavas cost Rs. 90, how many guavas can be bought for Rs. 240?

The length of the diagonal and the breadth of a rectangle is 13 cm and 5 cm respectively. Calculate its area (in cm²).

Of the three numbers, the average of the first number and the second number is 37 more than the average of second number and third number. What is the difference between the first and the third number?