Question
 Rohan's present age is 3/7 times the age of his
mother. After five years, he will be one- half of the age of his mother. How old is his mother at present?Solution
Solution-
Rohan           Mother
3 Â Â Â Â Â Â Â Â Â Â Â Â Â Â 7
After 5 years
ATQ-
3x+5 =(7x+5)/2
6x+10=7x+5
X=5
Present age of mother =7×5=35years.
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