Quantitative Aptitude - Arithmetic Ability Questions

The total surface area of a hemisphere is 4158 cm2. Find its diameter (in cm).

In a one day match of 50 overs in an innings the team A had a run rate of 5.3 runs per over. Team B is playing and 5 overs are left and the required run rate to tie the match is 7.2 per over to match the score of Team A. What is team B's score?

The average cost of 5 items in a shopping list is Rs 650. If one more item whose cost is Rs 1400 is added to the list what will be the new average (in Rs)?

The value of x13+x-13x23-1+x-23

Two labourers A and B are paid a total of Rs 650 per day. If A is paid 160 percent of what is paid to B, how much (in Rs) is B paid?

If x - y = -9 and xy = -20, then find x2 + y2 ?

In what time(in years) will Rs. 8000 amount to Rs. 9261 at 5% per annum, compounded annually?

If 2x/3 - [5(4x/5 - 4/3)]/2 = 1/3, then what is the value of x?