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3 years ago

Gary is 8 years older than his brother. Six years ago Gary was three times as old as his brother. How old are they now?

Mathematics

1 answer:

zepelin [54]3 years ago

6 0

Answer:Gary-18 brother-10

Step-by-step explanatiation:Gary=8 years+ brother's years

6 years ago :

Gary=3×brother's years

So:

1st case:brother=1 year,gary=3 years=>after 6 years brother=7 years,gary=9 years (NO)

2nd case:brother=2years,gary=6 years=>after 6 years brother=8 years,gary=12 (no)

3rd case:brother=3 years,gary=9 years=>after 6 years:brother=9 yrs, gary=15 yrs(no)

4th case:brother=4 yrs,gary=12 yrs=>after 6 years: brother=10 years,gary=18 years (This is the one)

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Answer:

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Step-by-step explanation:

Given that the diameter of the drum = 8 feet

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2 years ago

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GrogVix [38]

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