Quantitative Aptitude - Arithmetic Ability Questions

The ratio of present ages of Ratna and Shantanu is 5:4. After 19 years the ratio of their ages will be 10:9. What is Ratna's present age?

In a committee there are 25 members. If two members whose ages are 64 years and 40 years are replaced by the two new members, then average age of 25 members is decreased by 2 years. What is the average age (in years) of the new members?

The average of 3 consecutive even numbers is A. If next 5 even numbers are added, then what is the average of these 8 numbers?

The largest 5 digit number exactly divisible by 95 is ______.

The length and breadth of a rectangle are 24 cm and 7 cm respectively. Calculate its perimeter (in cm).

What number should be added to each of the numbers 55, 100, 65 and 116, so that the resulting numbers are in continued proportion?

If 7x - [3(2x - 3)]/2 = 1/2, then what is the value of x?

If x3 – 4x2 + 19 = 6(x – 1), then what is the value of [x2 + (1/x – 4)]?