Quantitative Aptitude - Arithmetic Ability Questions

If cot(A/2) = x, then the value of x is

By increasing the price of entry ticket to a fair in the ratio 11:16, the number of visitors to the fair has decreased in the ratio 19:9. In what ratio has the total collection increased or decreased?

What is the smplified value of Sin2A/1+Cos2A ?

A shopkeeper purchased 510 eggs at the rate of Rs. 20 per dozen. 30 eggs were broken on the way. In order to make a gain of 20%, he must sell the remaining eggs at the rate of

Marked price of an article is Rs 3600 and selling price is Rs 3132. What is the discount percentage?

If ab = 21 and a+b2a-b2 = 254,then the value of a2+b2+3ab

A bank offers 5% compound interest per half year. A customer deposits Rs. 3200 each on 1st January and 1st July of a year. At the end of the year, the amount he would have gained by way of interest is:

A spherical lead ball of radius 6 cm is melted and small lead balls of radius 3 mm are made. The total number of possible small lead balls is