Quantitative Aptitude - Arithmetic Ability Questions

If 3x - 8(2 - x) = -19, then the value of x is

If 14.35 - (1.956 - x ) - 83.92 = 3.858 then what is the value of x?

What is the third proportional to 10 and 20?

Find the range of the data : 11,13, 9, 17, 13, 19, 10, 11

Pipes A and B, when working together, can fill an empty tank in 8 hours. If B is stopped after 2 hours, it will take a total of 11 hrs to fill the tank. How long would it take A to fill the empty tank alone?

Diameter of wheel of a cycle is 21 cm. The cyclist takes 45 minutes to reach a destination at a speed of 16.5 km/hr. How many revolutions will the wheel make during the journey?

R and S started a business by investing Rs 165000 and Rs 195000 respectively for the same period of time. If R’s share in the profit earned by them is Rs 11000, then what is the total profit (in Rs) earned by both of them together?

The simple and compound interest that can be earned in two years at the same rate is Rs 1500 and Rs 1575 respectively. What is the rate (% per annum) of interest?