Question

The 7th

term and the 17th term of an A.P. are 24 and 54 respectively. Find the 12th term of

this A.P
fast and give me from 3 marks​

Answer 1

Answer:

hey mate here is the answer

Step-by-step explanation:

7th term = 24

17 th term = 54

a+6d+a+16d = 54

2a+22d= 78

2(a+11d)= 78

a+(12-1)d= 39

T12= 39

Hence 12th term is 39

hope it's helpful to you.

Answer 2

Answer:

a+6d=24

a+16d=54

-10d=-30

d=-30/-10

d=3

so a+6 (3)=24

a=24-18=6

i.e. a+11d=6+11 (3)=39

12th term is 39