A motorist knows four different routes from Bristol to Birmingham. From Birmingham to Sheffield he knows three different routes and from Sheffield to Carlisle he knows two different routes. How many routes does he know from Bristol to Carlisle ?

A. 71 years B. 72 years C. 74 years D. 77 years

A. Rs. 4, Rs. 23 B. Rs. 13, Rs. 17 C. Rs. 15, Rs. 14 D. Rs. 17, Rs. 13

A. 2/13 B. 13/40 C. Data inadequate D. None of these

A. 8 B. 12 C. 16 D. 24