Quantitative Aptitude - Arithmetic Ability Questions

If a+b-62+a2b2+1+2b=2ab+2a, then the value of a is 

Average of 14 numbers is 32. If the average of last 5 numbers is 26, then what is the average of the remaining numbers?

The difference between compound interest and simple interest on Rs. 5000 for 2 years at 8% per annum payable yearly is

A sum fetched a total simple interest of Rs 1200 at the rate of 7.5%/yr in 4 years. What is the sum (in Rs)?

If A, B and C are denoting Mean, Median and Mode of a data and A : B = 9 : 8. Then the ratio of B : C is

Some one rupee, 50 paisa and 25 paisa coins make up rupees 93.75 and their numbers are in the proportion of 3 : 4 : 5. Find the number of each type of coins?

If the speed of a boat in still water is 20 km/hr and the speed of the current is 5 km/hr, then the time taken by the boat to travel 100 km with the current is

If 31x + 31y = 403, then what is the average of x and y?