Quantitative Aptitude - Arithmetic Ability Questions

If 1/3(12x/5 - 1/2) + 6/5 = 7/6, then what is the value of x?

A student has to secure 40% marks to pass. He gets 67 and fails by 13 marks. What is the maximum marks?

The height of a tower is 300 meters. When its top is seen from top of another tower,then the angle of depression is 60°. The horizontal distance between the bases of the two towers is 120 metres. What is the height (in metres) of the small tower?

What is the value of cosec 3π/4?

The distance between the points (2, 7) and (k, -5) is 13. What is the value of k?

What is the length of the side of an equilateral triangle, if its area is 64√3 sq cm?

The labourers A, B, C were given a contract of Rs. 750 for doing a certain piece of work. All the three together can finish the work in 8 days. A and C together can do it in 12 day, while A and B together can do it in 13 1/3 days. The money will be divided in the ratio

The average of 100 items was found to be 30 . If at the time of calculation , two items were wrongly taken as 32 and 12 instead of 23 and 11 , then the correct average is