It takes Engineer Kweku three hours to drive to his brother’s house at an average speed of 50 miles per hour. If He takes the same route home, but his average speed is 60 miles per hour, what is the time, in hours, that it takes him to drive home?

It takes Engineer Kweku three hours to drive to his brother’s house at an average speed of 50 miles per hour. If He takes the same route home, but his average speed is 60 miles per hour, what is the time, in hours, that it takes him to drive home?

1 Mark(s)

A) 2 hours and 33 minutes

B) 2 hours and 30 minutes

C)2 hours and 3 minutes

D) 2 hours and 60 minutes

3 hours

A machine can stamp 40 envelopes in 8 minutes. How many of these machines, working simultaneously, are required or needed to stamp 120 envelopes per minute?

A machine can stamp 40 envelopes in 8 minutes. How many of these machines, working simultaneously, are required or needed to stamp 120 envelopes per minute?

1 Mark(s)

A) 3 Machines

B)24 Machines

C)60 Machines

D)28 Machines

E)600

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