Buffy peeled one third of an orange in one ninth of a minute. To find the rate in oranges per minute, we need to determine how many whole oranges Buffy can peel in one minute.
Since Buffy can peel one third of an orange in one ninth of a minute, it means she can peel a whole orange in three times that amount of time, or three ninths of a minute. Simplifying three ninths gives us one third of a minute.
Therefore, Buffy can peel one whole orange in one third of a minute. To find out how many oranges she can peel in one whole minute, we simply take the reciprocal of one third, which gives us 3 oranges per minute. This is because the reciprocal of 1/3 is 3/1, or simply 3.
So, Buffy’s peeling rate is 3 oranges per minute.