Quantitative Aptitude - Arithmetic Ability Questions

The area of a circle is 616 sq.m. Find its diameter.

Find the value of 777777?

If sin (3x ­ 20°) = cos (3y + 20°), then find the value of (x + y).

In a triangle PQR, ∠Q = 90°. If PQ = 12 cm and QR = 5 cm, then what is the radius (in cm) of the circum circle of the triangle?

If xy+yz+zx = 1, then the value of (1+y2)(x+y)(y+z) ?

Two whole numbers are such that the square of first number exceeds the second by 112 and the ratio of the numbers is 4:3. What is thevalue of smaller number?

Rs. 3105 is due to be divided among K, L and M in the proportion of 2/3 : 3/4 : 1/2 respectively. How much will L get?

How long will Ramesh take to run round a square park of edge 50 meters, if he runs at the rate of 18 km/hr?