Quantitative Aptitude - Arithmetic Ability Questions

A factory buys 7 machines. 2 Machine A, 2 Machine B and rest Machine C. Prices of the machines are Rs 95000, Rs 75000 and Rs 43000 respectively. Calculate the average cost of these machines?

Calculate the area (in cm2 ) of a circle of radius 10.5 cm.

2 litre of pure alcohol is added to 6 litre, 40% alcohol solution. The percentage of water in the solution is _____ .

In the following questions two equations numbered I and II are given. You have to solve boththe equations and give answers

I. 2x ² –21x + 54 = 0

II. y ² –14y + 49 = 0

If 35% of (x + y) = 40% of (x – y), then x is what percentage of y?

What is the value of Sin 60° + (1/2)Cosec 45°?

What is the value of Cot 60°- Sec 45°?

If a = √2 + 1 and b = √2 - 1, then the value of 1a+1+1b+1 will be