Quantitative Aptitude - Arithmetic Ability Questions

What is the slope of the line parallel to the line passing through the points (6,­3) and (2,­1)?

Find the fraction which is as much greater than 4/7 as it is less than 5/6

Pipes A, B and C are attached to an empty cistern. While the first two can fill the cistern in 4 and 10 hrs, respectively, the third can drain the cistern, when filled, in 6 hrs. If all the three pipes are opened simultaneously when the cistern is half-full, how many hours will be needed to fill the cistern?

N invented Rs.20,000 in a business. Six months later, C joined him with Rs. 10,000. At the end of the year, the profit was Rs. 10,000. What should be the share of N?

In the following question, select the odd letter/letters from the given alternatives.

What is the obtuse angle formed by the hands of a clock when the time in the clock is 2:30?

If the length of the shadow of a vertical pole on the horizontal ground is √3 times its height, then the angle of elevation

32% of a number is 80. What is the number?