Quantitative Aptitude - Arithmetic Ability Questions

Present age of Anil and Rajesh are in the ratio of 11 : 6 respectively. 9 years ago, their ages were in the ratio of 7 : 3. If the Pankaj’s present age is 1/4 of the Anil’s present age, then what is the Pankaj’s present age (in years)?

In what time will Rs.4400 become Rs.4576 at 8% per annum interest compounded half-yearly?

Pihu and Aayu are running on a circular track of diameter 28m. Speed of Pihu is 48 m/s and that of Aayu is 40 m/s. They start from the same point at the same time in the same direction. When will they meet again for the first time?

Rakshanth is twice as good as tradesman as Verma and together they finish a piece of work in 19 days. In how many dayswill Verma alone finish the work?

The number of students in a class is increased by 20% and the number now becomes 66. Initially the number was

Volume of a cube is 512 cubic cm, find its total surface area? (Take π = 22/7)

On a certain principal if the simple interest for two years is Rs 2800 and compound interest for the two years is Rs 2996, what is the rate of Interest?

Find the area (in sq.cm) of a semi-circle of radius 14cm.