Question

if the seventh and thirteenth term in of an A.P is 34 and 64 respectively , then the eighteenth term is

​

Answer 1

Answer:

then it will be 94 plz yaar mark me brainliest and follow mee

Answer 2

Answer:

The answer is 89

follow me

Step-by-step explanation:

if the 7th term is 34

then a+6d=34

13 th term is 64

a+12d=64

a+12d-(a+6d)=64-34

=>a+12d-a-6d=30

=>6d=30

=>d=30/6=5

a+6d=34

=>a+6×5=34

=>a+30=34

=>a=34-30=4

then the 18th term is

a+(n-1)d

=4+(18-1)×5

=4+17×5

=4+85

=89