What is the difference between the number of diesel engine cars in state-2 and the number of petrol engine cars in state-4 ?

Options

A. a) 159
B. b) 21
C. c) 28
D. d) 34

Answer

B

Explanation

Difference between No. of diesel cars in S-2 and No. of pertrol cars in S-4
`=91-70=21`