pzazz12 wrote:

In a small snack shop, the average (arithmetic mean) revenue was $400 per day over a 10-day period. During this period, if the average daily revenue was $360 for the first 6 days,

what was the average daily revenue for the last 4 days?

A. $420

B. $440

C. $450

D. $460

E. $480

D. $460 is my answer.

400 = x/10

x = 4000

For first 6 days = 360 * 6 = $2160

therefore for the last 4 days revenue is $4000 - $2160 = 3840

hence, airthmatic mean = 3840/4 = $460

Please let me know the OA.

Also, I am very bad in explaining things. I am waiting for Bunuel to respond.

He is extremly good in explaining solution.

_________________

I don't want kudos.. I want to see smile on your face if I am able to help you.. which is priceless.