1. Example problems

A picnic is being planned in a school for Class \(VII\). Girls are \(60 \%\) of the total number of students and are \(18\) in number. The picnic site is \(55 \ km\) from the school and the transport company is charging at the rate of \(₹12\) per \(km\). The total cost of refreshments will be \(₹4280\).

 

Can you tell.

 

(i) The ratio of the number of girls to the number of boys in the class? $i:i$

 

(ii) The cost per head if two teachers are also going with the class? \(₹\)

 

(iii) If their first stop is at a place \(22 \ km\) from the school, what per cent of the total distance of \(55 \ km\) is this? $i\%$

 

What per cent of the distance is left to be covered? $i\%$