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Q.

How many matchsticks will n number of the following pattern contain?

Q11 a Look at the following matchstick pattern of squares The squares are not separate Two neighbori...

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a

7n

b

3n

c

6n

d

5n

answer is C.

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Detailed Solution

The number of matchsticks in the given figure:

1+1+1+1+1+1+1=7

For n number of patterns,  we can write the number of matchsticks as,  7𝑛 (as seven matchsticks used in each figure).

Hence, n number of the given pattern will contain 7n matchsticks. 

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