Question

FIND RS
A-1
B-8
C-17
D-27

Answer 1

C-17 I think my bad

Explanation:

Answer 2

we have:

10*(9x-1+10)=9(9+11)

10(9x+9)=9*20

9(x+1)=9*20/10

x+1=18/9

x+1=2

x=2-1

x=1

Now

RS:9×1-1=8