Question

26) Find the sum of the first 15 multiples of 12.​

Answer 1

$\huge\blue{\underline{\sf{Answer↓}}}$

1440

$\huge\blue{\underline{\sf{Explanation↓}}}$First 15 multiples of 12 are:

12, 24, 36,

48, 60, 72,

84, 96, 108,

120, 132, 144,

156, 168, 180

Now we will add all this: ↓

12, + 24, + 36, + 48, + 60, + 72, + 84, + 96, + 108, + 120,+ 132, +144,+ 156, +168, +180

= 1440