Techr: agr 1 aur 1 2 hote hain aur 2 aur 2 4 hote hainaur 3 aur 3 6 hote hainphir 7 aur 7 kitne hon ge?Studnt: sir,asaan wale ap ne khud hal kr lyeaur mushkil wala mere lye chor diya. :-)
also you can..