Find the number of squares in the given picture.
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Solution
40
There are 40 squares in this picture.
Let us denote the size of squares from smaller to larger by S1, S2, S3, S4 and S5.
No. of S1 = 8
No. of S2 = 16 + 2 middle ones = 18
No. of S3 = 9
No. of S4 = 4
No. of S5 = 1