Quantitative Aptitude - Arithmetic Ability Questions

What is the slope of the line perpendicular to the line passing through the points (­6,3) and (2,7)?

Two trains are moving in opposite directions with the same speed. If the length of each train is 144 metres and they cross each other in 9 seconds, then what is the speed (in km/hr) of each train?

The amount of extension in a spring is proportional to the weight hung on it. If the weight of 5 kgs produces an extension of 0.4 cm, what weight would produce an extension of 5cm?

The whole surface area of a pyramid whose base is a regular polygon is 340 cm2 and area of its base is 100 cm2 . Area of each lateral face is 30 cm2. Then the number of lateral faces is

What is the square root of 9409?

 What is the value of (sin60° - 2/√3) ?

A sum of Rs 8000 is borrowed at compound interest at the rate of 7% per annum. What will be the amount (in Rs) after 2 years?

Which of the following is the CORRECT option for the triangles having sides in the ratio of 3:4:6?