Find the sum of first 12 multiple of 7
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Answered by
4
a=7 d=7
a12=a+(n-1)d
a12=7+(12-1)7
=7+11*7
=7+77
a12=84
the sum of first 12 multiple of 7 is 84
a12=a+(n-1)d
a12=7+(12-1)7
=7+11*7
=7+77
a12=84
the sum of first 12 multiple of 7 is 84
Answered by
1
First 12 multiple of 7 = 7, 14 ,21,28,35,42,49,56,63,70,77,84
Total Sum = 546
Total Sum = 546
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