Quantitative Aptitude - Arithmetic Ability Questions

What is the slope of the line parallel to the line passing through the points (3 , -4) and (-2 , 5)?

Some masons promised to do a work in 10 days but 8 of them were absent and remaining did the work in 18 days. What was the original number of masons?

The angles of depression of two ships from the top of a light house are 60° and 45° towards east. If the ships are 300 m apart, the height of the light house is

The mean of a distribution is 21 and the standard deviation is 7. What is the value of the coefficient variation?

If the standard deviation of a population is 6.5, what would be the population variance?

A right-angled triangle ABC is right-angled at B, and tan A = 4/3. If AC = 25 cm, the length of BC is

What is the equation of the line which has 3/2 and -­4/7 as x and y intercept respectively?

The length of one side and the diagonal of a rectangle are 5 cm and 13 cm respectively. Find its area (in cm2).