Quantitative Aptitude - Arithmetic Ability Questions

12 men and 16 women together can complete a work in 4 days. It takes 80 days for one man alone to complete the same work, then how many days would be required for one woman alone to complete the same work?

The average monthly salary of 19 members of a group is Rs. 16000. If one more members whose monthly salary is Rs. 20000 has joined the group, then the average salary of the group is

Of the 3 numbers whose average is 112, the first is 3/13 times the sum of other 2. The first number is _____.

The surface area of a sphere is 1386 cm2.  Find its diameter (in cm)

The line segment AB intersects the straight line CD at B; AB will be smallest when ∠ ABD (in degrees) is

A satellite airtime bill costs Rs. 8 for 5 minutes 40 seconds. What is the cost in rupees for 4 minutes 20 seconds? (Round upto one decimal).

If a3 + b 3 = 35 and ab = 6, then what is the value of a + b?

The line passing through the point (5,a) and point (4,3) is perpendicular to the line x - 6y = 8. What is the value of 'a'?