Quantitative Aptitude - Arithmetic Ability Questions

If a3 + b3 = 19 and ab = -6 , then what is the value of a + b?

What is the area (in sq cm) of a circle whose circumference is 22 cm?

What is the equation of the line whose y-intercept is -3 and makes an angle of 45° with the positive x-axis?

What is the area (in sq cm) of a rectangle if its diagonal is 26 cm and one of its sides is 10 cm?

If 3 dozen guavas cost Rs. 90, how many guavas can be bought for Rs. 240?

Two numbers are in the ratio 5:6 when 6 is added to each, the ratio becomes 7:8 then the numbers are

In a bag the ratio of red balls to green balls is 4 : 9. If 6 more green balls were added to the bag, the ratio of red balls to green balls would become 1 : 3. How many red balls are there in the bag?

The mode of the data -3, 4, 0, 4, -2, -5, 1, 7, 10, 5 is