One year ago a mother was 4 times older then her son. After 6 years, her age becomes more than double her sons age by 5 years. The present ratio of their age will be
"The gaming of numbers is called maths.So participate in this wonderful game and explore in it,learn in it and enjoy in it.Then only you can pass in this wonderful game."
Kumar Purnendu
"Mathematics is just a game of greatest fun so every one should play it "