Subject :IMO Class : Class 6
If 
then the value of
is
A1
B1/7
C2/7
D3/7
Ans 1:
Class : Class 4
Option A is correct. Please rectify
Ans 2:
Class : Class 6
option A is the correct answer.
Ans 3:
Class : Class 6
option A is the correct answer.
Ans 4:
Class : Class 6
as