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Papa ko nahi jante.
Teacher: Tumhare papa 500 rupees loan lete hai. 10% interest ke hisab se woh 1 saal baad loan vapis karte hai. Batao kitne paise vapis karenge?
Bania’s son: Kuch bhi nahi.
Teacher: Tum maths nahi jante.
Banis’s son: Main toh maths janta hoon, par aap mere papa ko nahi jante.
