Trinh has a part-time job at the local service station, where he is entitled to a staff discount of 10% on petrol and 15% on food and drink. On a particular day she buys 20L of petrol, which sells for 153.4 cents per liter, and a can of coke and a packet of chips, which cost him $2.50 cents and $3.05 respectively. How much was her bill, after discount, for that day?

Question

anonymous · Answer

I keep getting $32.33 as the answer

anonymous · Answer

But the solutions say the answer is $21.64

anonymous · Answer

Weird. I got the same answer too.

anonymous · Answer

I think the book has the wrong answer

anonymous · Answer

happens ometimes

anonymous · Answer

^yup.

anonymous · Answer

Thanks !!

anonymous · Answer

what's the value of cent in dollars by the way ? :P

anonymous · Answer

1$ = 100cents

anonymous · Answer

btw my answer is around $28