Question 174616
 an 8 year old boy nathan wants to compare his age with that of his mother and grandfather. his mother is exactly 4 times his age and his grandfather is exactly 7 times his age. how old is his mother? how old is his grandfather? 
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nathan = 8 yrs old
mother = 4*nathan = 4*8 = 32 yrs. old
granpa = 7*nathan = 7*8 = 56 yrs. old
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Cheers,
Stan H.