Question

8 के प्रथम 15 गुणजो का योग है​

Answer 1

Answer:

$8 \times (1 + 2 + 3 + .... + 15) = 8 \times \frac{15 \times 16}{2} = 8 \times 15 \times 8 = 120 \times 8 = 960$

Answer 2

Answer:

The sum of the first 15 multiples of 8 is

8+16+32+..........=968