Question

e sum of n terms of an AP is 3n2 + 5n. The series is
8, 14, 20, 26 (b) 8, 22, 42,68 (c) 22,68, 114, ....
e number of numbers between 74 and 25 556 divisible by 5 is
(d) none of the​

Answer 1

Step-by-step explanation:

for n=1 it is 8

for n=2 it is 3*2^2+5*2=12+10=22

for n=3 it is 3*3^2+5*3=27+15=42

so ans is 8,22,42,68