Quantitative Aptitude - Arithmetic Ability Questions

10 people could complete a task in 8 days. After 4 days, 2 of the workers left. How many days from then did it take to complete the task?

Calculate the difference between the square of the largest and smallest two-digit prime numbers.

Present age of R and S are in the ratio of 3 : 2 respectively. If the present age of H is 117 years and R’s present age is 4/13 of H’s present age, then after how many years the ages of R and S would be in the ratio of 15 : 11?

If an interior of a regular polygon is 170o, then the number of sides of the polygon is

Which of the following condition is sufficient to state that triangle ABC and DEF are similar?

The external and the internal radii of a hollow right circular cylinder of height 15 cm are 6.75 cm and 5.25 cm respectively. If it is melted to form a solid cylinder of height half of the orignal cylinder, then the radius of the solid cylinder is

In which quadrant, will the point (4, -2) be located?

Three sides of a triangle are 5 cm, 9 cm and x cm. The minimum integral value of x is