Question

If the sum of 3rd and 8th term of an arithmetic progression is 7and the sum of 7th and 14th term is -3. Find the 10th term?

Answer 1

answer -1

pls refer my attachment:

Answer 2

Step-by-step explanation:

a3+a8=7

a+2d+a+7d=7

2a+9d=7............1

a7+a14=-3

a+6d+a+13d=-3

2a+19d=-3...........2

from 1 and 2

2a+9d=7

2a+19d=-3

-10d=-10

d=1

put d value in equation1

2a+9×1=7

2a=7-9

2a=-2

a=-1

a10=a+9d

a10=8