Quantitative Aptitude - Arithmetic Ability Questions

For an article the profit is 170% of the cost price. If the cost price increases by 20% but the selling price remains same, then what is the new profit percentage?

After 10 innings the average score per innings of a batsman was 52. After 12 innings the average rose to 54. If the batsman had scored 16 more runs in the 12th innings than in the previous one, how many runs did he score in the 11th innings?

On a certain principal if the simple interest for two years is Rs 1400 and compound interest for the two years is Rs 1449, what is the rate of Interest?

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

If x + 1x = 3, then x18 + x12 + x6 + 1 value is

In a week, how many times are the hands of a clock at right angles with each other?

What is the value of (3/5 + 7/9)?

If 4(2x + 3) > 5 -­ x and 5x - ­3(2x­ - 7) > 3x -­ 1, then x can take which of the following values?