Raman drove from home to a neighbouring town at the speed of 50 kms./hr. and on his returning journey, he drove at the speed of 45 kms./hr. and also took an hour longer to reach home. What distance did he cover each way?

• A. 450 kms.
• B. 225 kms.
• C. 900 kms.
• D. 500 kms.