Math, asked by ramu13474gmailcom, 11 months ago

Evaluate 10+ 11+12++..........+25

Answers

Answered by Anonymous

10

This is an series of AP:

a=10,l=25,d=1,n=16

Sn = n/2[a+l]

= n(10+25)/2

= n(35/2)

= 17.5n

= 17.5×16

= 280.

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Answered by brundag

1

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