X bought 4 bottles of lemon juice and Y bought one bottle of orange juice. Orange juice per bottle costs twice the cost of lemon juice per bottle. Z bought nothing but contributed Rs. 50 for his share of the drink which they mixed together and shared the cost equally. If Z’s Rs. 50 is covered from his share, then what is the cost of one bottle of orange juice?

• A. Rs. 75
• B. Rs. 50
• C. Rs. 46
• D. Rs. 30