Question

The cost $C of running a camp is partly constant and partly varies directly as the total number of students n joining the camp. When 32 students join the camp, the cost is $2680 and when 38 students join the camp, the cost is $3070.
(a) Express C in terms of n.
=> C=600+65n
(b) The students of S5A are preparing for a camp. The teacher finds that the cost of running the camp is $3200. How many students joined the camp?
=> N=40
(c) If the cost is shared equally among the students who joined the camp, how much should each student pay?

Answer 1

is \(C=600+65N\) correct, or are you checking it?

Answer 2

yup, i have checked, it's correct

Answer 3

so for the next question, set
\[600+65N=3200\] and solve for \(N\)
i assume that is easy for you since you already did the hard part

Answer 4

N=40

Answer 5

looks good to me

Answer 6

my problem is in part c.

Answer 7

really?

Answer 8

yup..

Answer 9

how many students joined? you already said 40 right?

Answer 10

and the total cost was $3200

Answer 11

ohhh..... is part c related to part b...?

Answer 12

oh i see now that you mention it, it is a bit ambiguous isn't it?

Answer 13

but if it doesn't relate to part b you cannot do it

Answer 14

umm....that means...

Answer 15

\(3200\div 40=?\)

Answer 16

80....
just this???!!

Answer 17

yup

Answer 18

omg

Answer 19

thanks

Answer 20

really they could have said explicitly that part c was the students in part b
i assumed it only because without that, you could not possibly do the problem
it does kind of seem like a general question, but it can't be general

Answer 21

yw