Quantitative Aptitude - Arithmetic Ability Questions

In a bag, the ratio of red balls to green balls is 4:9. If 7 more red balls are added to the bag, the ratio of red balls to green balls will become 5:6. How many green balls are there in the bag?

Slope of the line AB is -2/3. Co-ordinates of points A and B are (x , -3) and (5 , 2) respectively. What is the value of x?

Simplify 11.9983 = ?

ΔABC is right angled at B. If m∠C = 60°, then find the value of (cotA - 1/2).

0.296 + 2.96 + 29.6 + 296 = ?

U, V and W together can make a chair in 20 minutes. U and V together can make it in 25 minutes. How much time will (in minutes) W alone take to make the chair?

The height of a tower is 50√3 m. The angle of elevation of a tower from a distance 50 m from its feet is

cos(A+B) + cos(A-B) is equal to