Annmarie can plow a field in 240 minutes. Gladys can plow a field 80 minutes faster. If they work together, how many minutes does it take them to plow the field? A)96 min B)160 …

Question

asked May 6, 2020 12.4k views

1 Answer

LOLapalooza · Answer 1 · 2020-05-11T23:09:09+0000

Answer:

Option A is the correct answer.

Explanation:

Let the work plow a field be x.

Annmarie can plow a field in 240 minutes.

Rate at which Annmarie can plow
=(x)/(240)

Gladys can plow a field 80 minutes faster

Time taken by Gladys = 240 - 80 = 160 minutes.

Rate at which Gladys can plow
=(x)/(160)

If they combine time taken to plow
$=(x)/((x)/(240)+(x)/(160))=(240* 160)/(240+160)=96\texttt{ minutes}$

Option A is the correct answer.