Question

Q5. Find sum of 24 term 5, 8, 11, 14 -
-​

Answer 1

Answer:

1068

Step-by-step explanation:

sn = n/2 (2a + (n-1)d)

n=24, a=5,d=8-5=11-8=3

sn =24/2 (2×10 + (24-1)×3))

= 12(20 + 69)

=12×89

=1068