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Rajan got married 8 years back. His age then was 5/6 of his present age. His sister was 10 years younger atthe time of his marriage. How old is she now?A140R138 |
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Answer» let rajan age=x yearlet his sister's age=y yeara.t.q1st conditionx=10+y .....(1)2nd conditionx-8=5/6x2nd condition x-8=5/6xput x=10+y10+y-8=5/6×(10+y)2+y=50+5y/612+6y=50+5y6y-5y=50-12y=38put the value y in eq.(1)x=10+38x=48 60 years is it right answer 48 year is right answer |
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