Quantitative Aptitude - Arithmetic Ability Questions

A and B together can do a piece of work in 12 days while A alone can do the same work in 30 days. B alone can do it in

If cosec∅+sin∅cosec∅-sin∅=53 then the value of sin∅is equal to

A mixture of 50 kg of cement and gravel contains 10% of gravel. How many kg of gravel must be added to make the gravel content 28% in the new mixture?

If the loss of percent on article is 15%. Then the ratio of the cost price and sell price will be

If cost price of 5 cars is equal to selling price of 4 cars. Find the percentage of profit or loss?

In the following question, select the odd number group from the given alternatives.

What is the value of sec2θ + 1sec2θ - 1 x 12cotθ - tanθ ?

If 1/√(1 -­ sin2A) = x, then the value of x is