Quantitative Aptitude - Arithmetic Ability Questions

If cot ­-4π/3 = x, then the value of x is

The angles of depression of two ships from the top of a light house are 45° and 30° toward east. If the ships are 200m apart, the height of the light house is (take √3=1.73)

Abhishek marks the price of his laptop 60% above the cost price. If he gives a discount of 30% on the marked price, then what is the profit percentage?

What is the sum of the first 12 terms of an arithmetic progression if the first term is 3 and last term is 47?

The product of two numbers is 48. If one number equals "The number of wings of a bird plus 2 times the number of fingers on your hand divided by the number of wheels of a Tricycle". Then the other number is

A car travels a certain distance at 34 km/h and comes back at 66 km/h. What is the average speed for total journey?

If cosec π/4 - ­ sin π/3 = x, then the value of x is

If (cotA - cosecA)2 = x, then the value of x is