Tricky Math Quiz: If A+B = C , A - C = B, A = 10. What is B ?

This Math Quiz needs little time to understand it before solving. Some one on our Facebook page asked us this question " Hi Matrickscam, why is it that on always spend about ten seconds before understanding a Math Quiz or puzzle?" Please someone help us answer this via comment.


This quiz is base on a topic in Mathematics; Sylmotaneous equations. Here is the Quiz: If A+B = C , A - C = B, A = 10. What  B?



Solution:

Let A+B = C be equation one and A - C = B be equation Two Since B = A- C,

Let's substitute in equation one. So, A + A - C = C.

10 + 10 - C = C 20 = 2C 10 = C. Now let's substitute C in equation 2.

A - C = B 10 - 10 = B 0 = B. The answer to the Quiz is 0.

If you have other views, let us know.
Previous Post Next Post

Contact Form