Quantitative Aptitude - Arithmetic Ability Questions

Determine the value of z in the equation: z = 20+20+20+20+...∞

If cotA = x, then the value of x is

A man spends 59% of his income and saves the rest. What percentage of his expenditure does he save?

At what point does the line 2x + 5y = -6 cuts the X-axis?

Find the volume (in cub.cm) of a sphere of diameter 42 cm

A farmer's land is in the shape of a trapezium which has its parallel sides measuring 2.56 yards and 3.44 yards and the distance between the parallelsides in 1.44 yards. The cost of ploughing the land is Rs 1800 per square yard. What amount will (in Rs) have to be spent in order to plough the entire land?

The average weight of Shivshankar, Gopesh and Reena is 97 kg. If the average weight of Shivshankar and Gopesh is 93 kg and that of Gopesh and Reena is 82 kg, then the weight of Gopesh is

The simplified form of (4x + 3)2 . (3x - 5) - (4x3 - 12x2 + 9x - 20) is