Quantitative Aptitude - Arithmetic Ability Questions

If A, B and C can do a job working alone in 12, 18 and 36 days respectively. They all work together for 2 day, then B quits. How many days will A and C take to finish rest of the job?

Starting with 8000 workers, the company increases the number of workers by 5%, 10% and 20% at the end of first, second and third year respectively. The number of workers in the fourth yearwas

The average weight of Somdev, Gurdeep and Ritu is 85 kg. If the average weight of Somdev and Gurdeep be 79 kg and that of Gurdeep and Ritu be 73 kg, then the weight of Gurdeep is

If 8/5 of 4/3 of a number is 192, then 5/6 of that number is

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

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

If cotA = x, then the value of x is

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