Question

An A.P consists of 31 terms. If its 16th term is m, then the sum of all the terms of this A.P is

1) 16m 2) 62m 3) 31m 4) 31

2

m​

Answer 1

31 m is the corrcet answer.

Answer 2

Answer:

an= 31

a+ ( n-1) d

a+ (30-1) d

a+30d

an = 16

a+ ( n-1) d=m

a+ (16-1) d= m

a+ 15d= m

a= m-15d

mark me as brainalist

likes also