Question

The 13th term of an AP is four times its 3rd term. If its fifth term is 16,
then find the sum of its first ten terms.​

Answer 1

Answer:

Answer is 175

Step-by-step explanation:

13th term of an AP = 4 ( 3rd term of an AP )

5th term of an AP = 16

so, a = 4

d = 3

and the sum of its first ten terms is 175

...

it's so easy....

Answer 2

Answer:

I hope my answer will be helpful for understand