Question

The sixth term of an arithmetic progression is 23 and the sum of first ten terma is 200. Find the seventh term.

Answer 1

Answer:

Step-by-step explanation:

a6=23

a+5d=23----1

S10=200

200=10/2{2q+9d}

400=20a+90d

40=2a+9d---2

By subtracting

d=6

Then a=-7

And then a7=a+6d

-7+6(6)

-7+36

a7=29