For a journey the cost of a child ticket is 1/3rd of the cost of an adult ticket. If the cost of the ticket for 4 adults and 5 children is Rs. 85, what is the cost of a child ticket? Choices:
A) 3	B) 4	C) 5	D) 6	E) 7
cost of 1 child=5   cost of 1 adult=A   5=1/3 A =&gt;A=35   4A+55=85   =&gt; 125+55=85   =&gt; 175= 85   =&gt;5=5   ANSWER:5
<result>C</result>
For a journey the cost of a child ticket is 1/3rd of the cost of an adult ticket. If the cost of the ticket for 4 adults and 5 children is Rs. 85, what is the cost of a child ticket?