Question

4) Find the sum of first 11 positive numbers which are multiples of 6.
52 laving cards F​

Answer 1

sum of 11 +ve numbers which are multiples of 6

ap formed. -6,12,18, ,,,,,,,,,,,,,66

a-6

n=11

d=6

$\huge\tt\underline\red{solution}$

sn=n/2(as+(n-1)*d

=11/2(2*6+(11-1)*6

=11/2(12+10*6)

=11/2(12+60)

=11/2(72)

=11*36

=396

$\huge\tt\underline\purple{thanks}$

$\huge\tt\underline\pink{hope-its-helpful}$

Answer 2

sum of 11 +ve numbers which are multiples of 6

ap formed. -6,12,18, ,,,,,,,,,,,,,66

a-6

n=11

d=6

\huge\tt\underline\red{solution}

solution

sn=n/2(as+(n-1)*d

=11/2(2*6+(11-1)*6

=11/2(12+10*6)

=11/2(12+60)

=11/2(72)

=11*36

=396

\huge\tt\underline\purple{thanks}