Quantitative Aptitude - Arithmetic Ability Questions

For an article the profit is 190% of the cost price. If the cost price increase by 10% but the selling price remains same, then profit is what percentage of selling price (approximately)?

A trader bought 10 kg of tea at Rs. 400 per kg. He sold half the quantity at 20% loss and remaining at 10% profit. What was his net profit or loss in percentage?

What should be the average speed of a car to cover a distance of 189 km in 3.5 hours?

A train is running at a speed of 116 kms/hr. The distance covered by the train in meters in 18 secs is

If 1/(cosecA ­ cotA) = x, then the value of x is

When a discount of 50% is given on a shirt, the profit is 25%. If the discount is 10%, then the profit is

If (4a-3)2=0,then the value of 64a3+12a+13 is

If ab-1b=cb-1c=ac-1a, then ac+ba+cb