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A girl is three years old and her brother is three times as old as she is When the girl is 7 years old how old will her brother be?
Scotlands4me
---- She is age 3, her brother is age 9
She is age 4, her brother is age 10
She is age 5, her brother is age 11
She is age 6, her brother is age 12
She is age 7, her brother is age 13
So when she is 7, her brother will be 13
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∙ 14y ago
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If the sum of the ages of a girl and her brother is 26 years.3 years ago her age was 4 times the age of her brotherFindout the ages of girl and brother?
Answergirl is 19. . .three years ago she was 16 boy is 7 . . .three years ago he was 4hope this helps!------------------------------------------------------------------Answer from Panawala - Karachi - Pakistan (fpanawala@hotmail.com)lets start with the Equitions1. x + y = 262. 4x + y = 20Now Multiply equation 1 by 41. 4x + 4y = 1042. 4x + y = 20Now subtract equation 2 from equation 1you get3y = 84y=28Now divide 28 by 4 because we mulitplied equation 1 by 4you get 7 so the age to the brother is 7 and three years back the age was 4the age of the sister is 19 and three years back the age was 16so to prove that 3 years before sister age was 4 times the age of brotheryou divide sister age from brotheryou get 16/4 = 4Answer solved and proved
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