Question

find the sum of first 24th term of Ap 5,8,11,14...
answer step by step please​

Answer 1

Answer:

Here a= 5, d = (8-5) = 3 and n = 24. =12×(10+69)=948.

Hence, the sum of first 24 terms of the given AP is 948.

Step-by-step explanation:

Answer 2

Answer:

In the following AP series :

Step-by-step explanation:

a = 5

d = 8-5 =3

n = 24

Sn = ?

Sn = n/2 [2a +(n -1)d ]

Sn = 24/2 [ 2×5+(24-1)3]

Sn = 12[10+ 23×3]

Sn = 12 [10+ 69]

Sn = 12 [79]

Sn = 948

So, sum of first 24th term is 948