1.

The sum of successive odd number 1,3,5,7,9,11,13 and 15 is

Answer»

ong>Answer:

as 1,3,5,7,9,11,13 and 15 FORM an ap

so sum= 8/2(2*1+(8-1)2)

{\frac{n}{2} (2a+(n-1)d)} is the formula used

=4(2+14)

=4(16)

=64

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