Question

For a journey the cost of a child ticket is $\frac{1}{3}$ of the cost of an adult ticket. If the cost of tickets for $4$ adults and $5$ children is Rs. $85$, the cost of a child ticket is

• A. Rs. $15$
• B. Rs. $6$
• C. Rs. $10$
• D. Rs. $5$

Answer 1

The correct option is A Rs. $15$

Let the cost of an adult ticket be $y$ $\Rightarrow$ Child's ticket costs $\frac{1}{3}y$
$\Rightarrow 4y+\frac{5}{3}y=85\Rightarrow 17y=225\Rightarrow y=Rs.15$
$\therefore$ cost of child's ticket $=Rs.15$