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A cylindrical oil tank has diameter …

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A cylindrical oil tank has diameter 7m and height 9m. If the inner sode of the tank has to be painted all over, what will it cost at 35rs per square metre

Posted by Gurpreet Ahuja 6 years, 9 months ago

CBSE > Class 08 > Mathematics

1 answers

Tushar Verma 6 years, 9 months ago

Radius =7/2= 3.5 m Height =9m Cost per square m = ₹35 Total surface area =2πr(H+r) 2×22÷7×3.5(9+3.5) = 275 saqure meter Cost of painting = 275×35 =₹ 9625 answer.

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