Quantitative Aptitude - Arithmetic Ability Questions

If 192 pens cost is Rs.10, how many pens can be bought for Rs.5?

What is the simplified value of 22433+393-11253?

Coefficient of x2 in 4x3 - 2x2 + 2x -­ 3 are

If 90% of A = 30% of B and B = x% of A, find x.

By increasing the price of entry ticket to a fair in the ratio 13:16, the number of visitors to the fair has decreased in the ratio 11:9. In what ratio has the total collection increased or decreased?

Two numbers are in the ratio 5:6 when 6 is added to each, the ratio becomes 7:8 then the numbers are

30% of a number exceeds 25% of the same number by 27. What is the value of the number?

A train travelling at 76 kmph crosses a 450 m long platform in 27 seconds. What is the length of the train?