There are three places P, Q and R such that 3 roads connects P and Q and 4 roads connects Q and R. In how many ways can one travel from P to R? Choose the correct choice from the following choices.
A) 41	B) 36	C) 25	D) 54	E) 12
Number of ways in which one can travel from P to R   =3×4=12=3×4=12   Ans: 12
<result>E</result>
There are three places P, Q and R such that 3 roads connects P and Q and 4 roads connects Q and R. In how many ways can one travel from P to R?