If 56Pr+ 6 : 54Pr + 3 = 30800 : 1 then the value of r is ?
Answer : B. 41
Find the value of 5P2 ?
Answer : C . 20
Our site uses cookies. By using this site, you agree to the Privacy Policy and Terms of Use.
We have detected that you are using extensions to block ads. Please support us by disabling these ads blocker.