Question

Pearson College owns a tabulator that can process registration data in 6 hours. Wanting to speed up the

processing, the school authorized the purchase of a second tabulator that can do the job in 8 hours. How many hours will it take the two tabulators working together to process all the data? (24/7 hr)

Answer 1

Let both be x and y

• 6x=8y=>3x=4y=>x=4y/3

So

`\\ \rm\Rrightarrow 6x+8y=1`

`\\ \rm\Rrightarrow 6(4y/3)+8y=1`

`\\ \rm\Rrightarrow 8y+8y=1`

`\\ \rm\Rrightarrow y=1/16`

`\\ \rm\Rrightarrow y=0.0625`

Answer 2

∞

Explanation: