Question

if the 1st term of an ap is 3 and the common difference is 5 find the sum of the 30 terms​

Answer 1

Answer:

a=3

d=5

Step-by-step explanation:

formula= n/2(a+(n-1)×d)

s30= 30/2(3+(30-1) ×5)

=15(3+29×5)

=15(3+145)

=15×147

=2205