Monday, 20 January 2014

Question No. 14 (18th Jan 2014)

Find the number of Rectangles in the Given Chart

 

 a) 11     b) 13     c) 16    d) 18    e) 20 

Answers and Explanations are welcome in comments

The Correct Answer will be Given Tomorrow
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1 comment:

  1. Unknown20 January 2014 at 04:41

    Correct Answer is 18
    Explanation : It is very tough to count each and every rectangle. So for your convenience note down the formula to count the Rectangles.

    [m(m+1)*n(n+1)]/4

    m is number of rows and n is number of columns

    m=2, n=3
    [2(2+1)*3(3+1)]/4
    [6*12]/4 = 18

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