Quantitative Aptitude - Arithmetic Ability Questions

If cos(A-B) - cos(A+B) = x, then the value of x is

A girl walking at the speed of 2 km/hr covers a certain distance in 7 hours 30 minutes. If she covers the same distance by cycle in 5 hours, then what is the speed (in km/hr) of cycle?

The surface area of a sphere is 5544 cm2. Find its diameter (in cm).

If the two lines px + 6y+3=0 and 2x + qy+3=0 have infinite solutions then find the value of p and q respectively.

Which of the following is a Pythagorean triplet?

Select the odd letters from the given alternatives.

In the following question, four number pairs are given. The number on left side of (–) is related to the number on the right side of (–) with some Logic/Rule/Relation. Three are similar on basis of same Logic/Rule/Relation. Select the odd one out from the given alternatives.

What is the equation of the line passing through the point (0,­4) and making an angle of ­45° with the positive x­axis?