Question

Average of first 12 counting no.

Answer 1

Answer:

1+2+3+4+5+6+7+8+9+10+11+12=78

78/12=6.5

Step-by-step explanation:

there is also an other method

sum of first 12 numbers=

$\frac{n \times( n + 1) }{2} \\ = \frac{12 \times 13}{2} = 78 \\ \frac{78}{12} = 6.5$

hope this will help u...

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