If n heptane in a mixture of iso octane and n-heptane by volume is 30%.Its octane rating is

If n heptane in a mixture of iso octane and n-heptane by volume is 30%

1.	If n heptane in a mixture of iso octane and n-heptane by volume is 30%.Its octane rating is
A.	30
B.	70
C.	50
D.	none of the above
Answer» C. 50