Student Ka Answer

teacher apne student se : agar tum apne dost ko 1000 rupees do or usko 300 ki zarurat ho to wo apko wapis kitne de ga ??
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student: kuch bhi nh 
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teacher : kion tu hisaab kitaaab  nh janta kia ??
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student: sir jee aap un bgerton ko nh jaante :-D :-P :-P