Quantitative Aptitude - Arithmetic Ability Questions

If xy = 56 and x2+ y2= 113, then what will be the value of (x + y)?

The sum of ages of Ram and his son is 48. If his uncle's age is also included the average becomes 40. What is the age of Ram's uncle?

Average of 11 numbers is 7. If every number is doubled, then what will be the new average of the numbers?

Two bikers A and B start and ride at 75 km/hr and 60 km/hr respectively towards each other. They meet after 20 minutes. How far (in km) were they from each other when they started?

One tap can fill a water tank in 50 mins and another tap can make the filled tank empty in 75 mins. If both the taps are open together, already half filled tank would be full in

Raghu has invested Rs. 1000 and received Rs. 1300 at 6% per annum simple interest after X years. Find thevalue of X.

Which measurement unit represents volume?

There are two parallel streets each directed north to south. A person in the first street travelling from south to north wishes to take the second street which is on his right side. At some place, he makes a 150 deg turn to the right and he travels for 15 minutes at the speed of 20 km/hr. After that he takes a left turn of 60 deg and travels for 20 minutes at the speed of 30 km/hr in order to meet the second street. What is the distance between the two streets?