If a person visits each of the places starting from P and gets back to P, which of the following places must he visit twice?
व्याख्या एवं हल
सही उत्तर: (B) R
To visit all cities from P and return to P, R must be visited twice due to the network configuration of transport routes.
In English (Question & Model Answer)
If a person visits each of the places starting from P and gets back to P, which of the following places must he visit twice?
Correct Option: (B) R
To visit all cities from P and return to P, R must be visited twice due to the network configuration of transport routes.