Quantitative Aptitude - Arithmetic Ability Questions

A ladder 20 m long is leaning against a vertical wall. It makes an angle of 30 deg with the ground. How high on the wall does the ladder reach?

What is the reflection of the point (6, -3) in the line y = 2?

What is the equation of the line whose y­-intercept is 4 and making an angle of 45° with the positive x-­axis?

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

A train 100 m long is running at a speed of 120 kms/hr. The time taken to pass a person standing near the line is

In a camp 180 students had ration for 20 days. How many students should leave the camp if the ration should last for 25 days?

What is the difference of the factors of the expression x2 + (1/x2) – 6?

Find the total surface area (in cm2 ) of a hemisphere of diameter 42 cm.