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Arvind is eight years older than …

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Arvind is eight years older than his sister In three years he will be trice as old as his sister. How old are they now?

Posted by Surya Basuri 6 years, 3 months ago

CBSE > Class 07 > Mathematics

3 answers

Sia ? 6 years, 3 months ago

LET SISTER'S PRESENT AGE BE X
THEN ARVIND'S AGE IS X + 8
AFTER THREE YEARS ARVINDS
AGE=X + 8 + 3
SISTER'S AE= X + 3
AS PER THE GIVEN CONDITION
ARVINDS AGE=2*SISTER'S AGE
X + 8 +3 = 2*(X+3)
X + 11 = 2X + 6
X = 5
SO SISTER'S PRESENT AGE IS 5 AND ARVIND'S PRESENT AGE IS 5 + 8 = 13

0Thank You

Ch. Kaarthikeya Chitta 6 years, 3 months ago

Arvind is 13 years and his sister is 5 years old

0Thank You

Ch. Kaarthikeya Chitta 6 years, 3 months ago

Let her sister age be X

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CBSE > Class 07 > Mathematics