The average typing speed is about $40$ words per minute (wpm). Colin took an online typing test, and typed $170$ words in $2$ . $5$ minutes $(\mathrm{min})$ . How much faster than average was Colin's typing speed in words per minute?

Full solution

Q. The average typing speed is about

40

words per minute (wpm). Colin took an online typing test, and typed

170

words in

2

5

minutes

(\mathrm{min})

. How much faster than average was Colin's typing speed in words per minute?

Calculate Colin's typing speed: Calculate Colin's typing speed. $\newline$ To find Colin's typing speed, we divide the total number of words he typed by the total number of minutes it took him. $\newline$ Colin's typing speed $= \frac{\text{Total words typed}}{\text{Total minutes taken}}$ $\newline$ Colin's typing speed $= \frac{170 \text{ words}}{2.5 \text{ minutes}}$
Perform the calculation: Perform the calculation for Colin's typing speed. $\newline$ Colin's typing speed = $170 / 2.5$ $\newline$ Colin's typing speed = $68$ words per minute (wpm)
Compare to average speed: Compare Colin's typing speed to the average typing speed. $\newline$ The average typing speed is $40$ wpm. To find out how much faster Colin's typing speed is compared to the average, we subtract the average speed from Colin's speed. $\newline$ Difference in speed = Colin's speed - Average speed $\newline$ Difference in speed = $68$ wpm - $40$ wpm
Calculate difference in speed: Calculate the difference in typing speed. $\newline$ Difference in speed = $68 - 40$ $\newline$ Difference in speed = $28$ words per minute (wpm)