Question

In an AP. it is given that common difference is 5 and sum of its first ten terms is 75. find term of the AP​

Answer 1

Answer:

-15

Step-by-step explanation:

sum of n terms =n/2[2a+(n-1)d] =75

= 10/2[2a+(n-1)d]=75

=5[2a+9(5)]=75

=2a+45=75/5

=2a=15-45

=a=-30/2

a= -15

Answer 2

Answer:

AP=15,20,25,30.......