Koi Sadharan byaj 20 years Mein 3guna Hota Hai doguna kb kab hoga
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Agar woh 20 years mein 3 times ho jata hai
toh 20 -----> 3
aur x ------->2
Cross multiply karke
x=40/3= 13 years and 4 months hai
toh 20 -----> 3
aur x ------->2
Cross multiply karke
x=40/3= 13 years and 4 months hai
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