Teacher Takes Student's Phone, Sets Passcode as Maths Problem Answer

By Kyle Wagner on at

This is what you want from a maths teacher. The word problem you see here is what happened after a Redditor's "friend" was caught using his phone during maths lesson. The teacher confiscated the phone, and set the passcode to a certain number, found by answering the problem.

It reads:

A car dealer offers Calahan a car that is priced at $2,800, but he only has a $600 deposit. Calahan's trade in is actually worth $500. The finance company insists on a 10 per cent deposit for a 22 per cent flat rate deal, so the dealer inflates the prices of both the trade-in and the car purchased What are the inflated prices, and what is the monthly repayment to pay of the car in 4 years?

Monthly payment rounded to the nearest dollor [sic]

First number is 0

I have no idea where to even start with that. Good luck, kid. [Reddit via Flowing Data]