A boy is 4 years old and his sister is three times as old as he is.when the boy is 12 years old, how old will his sister be
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answer is 20 years....
chetan54cg:
WRONG
IT'S ANSWER IS 20
sorry
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Let boy age- 4yrs (given) = x
let sister age-3x
after 8 yrs
boy-x+8
sister-3x+8
ATQ
PRESENT AGE OF SISTER= 3(4)
=12
SISTER AGE AFTER 8 YRS = 12+8=20
HOPE IT'S HELPFUL
PLZ MARK THIS AS BRAINLIEST
let sister age-3x
after 8 yrs
boy-x+8
sister-3x+8
ATQ
PRESENT AGE OF SISTER= 3(4)
=12
SISTER AGE AFTER 8 YRS = 12+8=20
HOPE IT'S HELPFUL
PLZ MARK THIS AS BRAINLIEST
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