Quantitative Aptitude - Arithmetic Ability Questions

The length of the diagonal and the breadth of a rectangle are 17 cm and 8 cm respectively. Find its perimeter (in cm).

What is the reflection of the point (-0.5, 6) in the x-axis?

An octahedron has 6 vertices. How many edges does it have?

If cosx.cosy + sinx.siny = -1 then cosx + cosy is

The measure of the four successive angles of a quadrilateral are in the ratio 7 : 11 : 7 : 11. The quadrilateral is a ______.

The time taken by a train 160 m long, running at 72 km/hr, in crossing an electric pole is

An alloy is made by mixing metal A costing Rs 2000/kg and metal B costing Rs 400/kg in the ratio A:B = 3:1. What is the cost (in Rs) of 8 kilograms of this alloy?

√(cosec2 -­ 1)/cosecA is equal to?