Four brothers P, Q, R and S go to a hotel. They book four hotel rooms numbered 301, 302, 303 and 304. The Sum of room numbers of P and R is 603 and the sum of room numbers of R and S is 604. What is the sum of room numbers of P, Q and R?
Show answer & explanation
Correct answer: A
Explanation
The correct answer is option 1 i.e. 907.
| Understanding |
|---|
|
According to the question; Sum of room numbers of P and R = 603 Sum of room numbers of R and S = 604 Room numbers are 301, 302, 303 and 304. So 301 and 302 can be room numbers of P or R but not necessarily in the same order. Similarly, 301 and 303 can be room numbers of R or S but not necessarily in the same order. From the above two conditions we can say that; Room number of P: 302 Room number of Q: 304 Room number of R: 301 Room number of S: 303 The sum of room numbers of P, Q and R is 907. Hence, option 1 is the correct answer. |