Maths · Functions
For a journey the cost of a child ticket is rd of the cost of an adult ticket. I
For a journey the cost of a child ticket is \( \frac{1}{3} \) rd of the cost of an adult ticket. If the \( \operatorname{cost} \) of tickets for 4 adults and 5 children is Rs. 85 , the cost of a child ticket is
- A. Rs.
- B. Rs. 6
- C. Rs. 10
- D. Rs. 15
Step-by-step solution
Let adult ticket cost be A. Child ticket cost = A/3. Total cost: 4A + 5*(A/3) = 85 -> (17A/3)=85 -> A=15. So child ticket = 15/3 = Rs. 5.
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