Question

Write any three arithmetic progressions with sum of first five terms is 30.​

Answer 1

hii

i am sorry I don't know it

Answer 2

Step-by-step explanation:

Sequence is 2,4,6,8,10….

Sequence is 4,5,6,7,8…

Sequence is 6,6,6,6,6…

Sn = 30 where n = 5

For an AP with a = first term

d = common difference

$sn = \frac{n}{2} {( 2a + (n - 1)d)}$

Substituting in above equation…

∴ 2a + (5-1) × d = 12

∴ 2a + 4d = 12

∴ a + 2d = 6