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6230Radios of age of girls and his mother 2:50.90 cmsad G4 Ple A8S ah) 685:n gand Oud these Current age. andalso find that what there age 's 10 year990. Pad that |
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Answer» According to the question present age of girl = 2xthat of her mother = 5xafter 5 years age of girl = 5yand that if mother = 11ynow According to the given condition, 2x + 5 = 5y -2x + 5y = 5 ... (i) and 5x + 5 = 11y -5x + 11y = 5 ... (ii) Multiplying eq (i) by 5 and (ii) by 2 and subtracting (i) from (ii) we get, -3y = -15y= 5 x = 10Hence present age of girl = 2x10 = 20and that of mother = 5x10 = 50Age of girl 10 years ago = 20 -10 =10Age of mother 10 years ago = 50 -10 =40 y=5 x =10 correct answer following |
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