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24-06-2020
Mathematics

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24-06-2020

Answer:

a) 32

b) [tex] 7+(n-1)\times 5[/tex]

Step-by-step Explanation:

Initial pattern has 7 sticks.

Second one has 7+5 sticks.

Third has 7+5+5 sticks.

.

.

.

Sixth has 7+5+5+5+5+5=32 sticks.

$n^{th}$ has $7+ 5(n-1)$ sticks.

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