Question

Find the sum of first ten multiple of 6

Answer 1

Answer:

Hello the answer is 330 .

see the attachment nd ignore my writing ❤❤

so here is Sol.

6,12,18 ............60

a=6 d=6 n=10

s10=n/2(a+l)

=10/2(6+60)

=5×66

=330 ans

Answer 2

Answer:

330

Step-by-step explanation:

THE FIRST 10 MULTIPLES OF 6 ARE 6, 12, 18, 24, ..., 60.

IT IS AN A.P. WITH FIRST TERM, a = 6 , COMMON DIFFERENCE, d = 6

∴ sum of first 10 multiple of 6 =

$S_{10} =\frac{10}{2} (6+60)$

       $\\ = \frac{10}{2} (66)$

       $\\=5(66)$

       $=330$