The floor of a rectangular hall has a perimeter 250. If the cost of the painting of the four walls at the rate of RS 10 per m² is 15000. Then height of the hall is equals to ....
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jii meri 2 íd h..
aur mai sach keh rahi hu meri ye vali ek íd delection par h..
isliye mai dusri íd par aaungi..
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