Video Transcript
A train ticket costs
thirty-nine dollars if you buy it on the day that you travel. If you buy it before that day,
then it’ll only cost thirty dollars. Find the percentage discount
for buying early to the nearest percent.
So we’re looking for the
percentage discount for buying early. So the original price is
thirty-nine dollars. And if we get the discount
price, we’re only paying thirty dollars. So I’m going from thirty-nine
dollars down to thirty dollars, that’s a saving of nine dollars. So the proportion of the full
price that we saved is minus nine over thirty-nine. And if we want to scale that
proportion up to a percentage, we need to multiply by a hundred. And when we tap that into our
calculator, we get minus twenty-three point O seven six nine two three and so on
and so on and so on. So to the nearest whole
percentage, that’s twenty-three percent saving. Now the fact that it’s a
negative number means that the cost reduced. It means we got a saving or a
discount. So my answer is we had a
twenty-three percent discount to the nearest one percent.
