Question

A student typed 360 characters per 4 min with errors in 20 characters. Find net speed in CPM​

Answer 1

Net CPM = 85 ; accuracy = 94.44%

Step-by-step explanation:

Student types 360 characters per 4 minutes with errors in 20 characters.

The formula to find CPM is as below:

Gross CPM = All Typed Entries / Time Taken

Net CPM = Gross  CPM - (uncorrected entries/time)

It is not specified whether the student corrected the 20 characters in error. So we assume that it was not corrected.

Therefore Gross CPM = 360 / 4 = 90 CPM

Net CPM = 90 - (20/4) = 90 - 5 = 85 CPM

The accuracy = (correct characters typed /  total number of characters ) * 100.

            = 340 / 360 * 100

            = 94.44%