Math, asked by sridharutukuri843, 1 year ago

Sum of multiples of 3 between 75 and 3072

Answers

Answered by anushka6734

0

sequence =78+ 81............+3072
t=a+(n-1)d
3069=78+(n-1)3
n=998

s=n÷2{2a+(n-1)d}
=988÷2{2*78+(988-1)3}
=18435

Anonymous: hi

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