Quantitative Aptitude - Arithmetic Ability Questions

If a + b = 17 and a - b = 9 then the value of (4a2 + 4b2) is,

In the following question, select the missing number from the given series.34, 69, 140, 283, ?, 1145

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

Of the 3 numbers whose average is 112, the first is 3/13 times the sum of other 2. The first number is _____.

If (-1/2) * ( x - 5) + 3 = -5/2, then what is the value of x?

What is the value of [2 cot × (p – A)/2]/[1 + tan2× (2p – A)/2]?

What is the value of 99992 x 100008?

Calculate the principal if an amount of Rs. 441 is received on compound interest at the rate of 5% per annum after 2 years.