14 thoughts on “Algebra – 14

  1. in the second question if (0,40) is considered, then number of solution is 14. can anybody explain how it is 13 in the solution. because even if question said positive integers, 0 is considered in the solution above

    • 0 is not considered in the final answer. But it is taken initially as it is an obvious integer solution, an easy starting point from which to generate further solutions. You need somewhere to start! Otherwise, you would need to do some trial and error to find the first acceptable solution.

      regards
      J

  2. The answer of 1st question can be easily obtained by looking at options.Why not go that way? I didn’t understand what is fraction penalties.
    BTW these posts are just amazings.Thank You!

    • Yes it certainly can be solved that way, if you are not put off by the fractions 🙂 (I personally find fractions irritating and they increase the chance of error, so I tend to avoid them when I can)

      However, nowadays CAT has a bad habit of not giving options for such questions 😦 So it becomes necessary to know how to find the solution properly!

      regards
      J

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Google+ photo

You are commenting using your Google+ account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

w

Connecting to %s