Question

The picnic site is 60 km from the school. The boys are 40% of the total number of students
going for picnic and are 12 in number. The cost of the conveyance is 12 per km. The total cost
of refreshments will be 4320. Find:
(a) the ratio of the number of boys to the number of girls going for picnic.
(b) the cost per head if two teachers are accompanying them.
(c) if the bus stopped for refreshments at the distance of 21 km from the school, what per cent
of the distance is left to be covered?​

Answer 1

let the no of total students be x

then 40%of x =12 hence x=30

then total amount for travelling =30+2 ×12= rs 384 total for refreshments 4320 . total amount =4320+384=4704

Answer 2

I don't know the exact answer but here