Quantitative Aptitude - Arithmetic Ability Questions

Calculate the simple interest if Rs. 1800 is invested for 10 years at a rate of 5% per annum.

Complete the number series by choosing the missing terms from the options. 32, 64, 256, 1536, ? ,122880,1474560

If 4x2 - 12x + k is a perfect square, then the value of k is

In the given series, how many 8s are there that are not divisible by the number to its left but completely divisible by the number to its right.

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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?

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

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)?