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JSUNIL
TUTO
RIAL
Area of 4 wall and ceiling = 2(l+b) x h + lb = 2(5 + 4) x 3 + 5 x 4 = 74 m2Cost of painting at the rate of Rs. 50 = Rs. 50 x 74 = Rs. 3700
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JSUNIL
TUTO
RIAL
= 31680 cm2
Area swept in 500 revolution = 31680x 500/10000 = 1584 m2Cost of leveling = 7. 50 x 1584 = Rs.11880
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