Assume in a second 500 million Facebook users exchange 200 p

Assume in a second, 500 million Facebook users exchange 200 pictures (of 2 meg).How much data can be collected in about 3 hours

Solution

in 3 hours means 10800 seconds

in one second 200 pictures

so in 10800 seconds

200*10800=2160000 pictures of 10800*2=21600 meg

so in 3 houres 21,60,000(of 21,600 meg) data can be collected.

reply in comment if you have any doubt.