Quantitative Aptitude - Arithmetic Ability Questions

If (5x – y)/(5x + y) = 3/7, then what is the value of (4x2 + y2 – 4xy)/(9x2 + 16y2 + 24xy) ?

If 1 + secA = x, then the value of x is

If (x+1/x) = 5, then the value of 5xx2+5x+1?

If (4x -­ 5) = (3x ­- 1), then the numerical value of (x + 4)2

The diameter of a circle is equal to the side of the square. What is the area of the square if the area of the circle is 64π sq cm?

In how many years will Rs 2,000 yield Rs 662 as compound interest at 10% per annum compounded annually?

Two water-squash mixtures, the first having a water-to-squash ratio of 4 : 1 and the other having a ratio of 3 : 1, are blended in the ratio 1 : 2. What is the water : squash ratio in the blend?

The average age of A and B is 18 years. After 3 years, C joins them and the average ages of A, B and C becomes 22 years. The age of C is ?