Question

. If 20th term exceeds .5 th term by 45 find d​

Answer 1

Answer:

according to the question,

a+4d=16

and a+19d=46

solving the above two equations we get,

a=8 and d=2

Hence the 12th term =a+11d=8+11×2=30

Answer 2

Answer:

Refer the attachment.

Step-by-step explanation:

Hope it helps you.