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What will be total cost of polishing cur...

What will be total cost of polishing curved surface of a wooden cylinder at rate of Rs 20 per `m^2` if its diameter is 40 cm and height is 7m?
लकड़ी की बेलन की वक्र सतह को 20 रुपये प्रति वर्ग मीटर की दर से पॉलिश करने की कुल लागत क्‍या होगी, यदि इसका व्यास 40 सेमी तथा ऊंचाई 7 मीटर है |

A

176 rs

B

184 rs

C

175 rs

D

186 rs

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The radius of a solid right circular cylinder is 21 cm and its height is 40 cm. What is the cost of painting the curved surface area of the cylinder at the rate of Rs. 20 per sq.cm? (Take pi=22/7 ) एक ठोस लम्ब वृत्तीय बेलन की त्रिज्या 21 सेमी है तथा इसकी ऊंचाई 40 सेमी है | 20 रुपये प्रति वर्ग मीटर की दर से इस बेलन के वक्र पृष्ठ क्षेत्र को रंगने की लागत ज्ञात करें |

The radius of hemisphere is 14cm. What is the cost of painting the outer curved surface of the hemisphere at the rate of Rs. 45 per sq.cm? (Take pi=22/7 ) एक अर्धगोले की त्रिज्या 14 सेमी है | इस अर्धगोले के बाहरी वक्र पृष्ठ को 45 रुपये प्रति वर्ग सेमी की दर से रंगने की लागत ज्ञात करें |

The height of a right circular cone is 24 cm and the radius of its base is 7 cm. What is the cost of painting the curved surface area of the cone at the rate of Rs. 6 per cm^2 ? (pi= 22/7) एक लम्ब वृत्तीय शंकु की ऊंचाई 24 सेमी है तथा इसके आधार की त्रिज्या 7 सेमी है | 6 रुपये प्रति वर्ग सेमी की दर से शंकु के वक्र पृष्ठ क्षेत्रफल को रंगने की लागत कितनी आएगी ?

Find the cost of carpeting a room which is 11m long and 6m broad by a carpet which is 60cm broad at the rate of rs 112.50 per meter. 11 मीटर लंबाई तथा 6 मीटर चौड़ाई वाले किसी कमरे में 112.50 रुपये प्रति मीटर की दर से कालीन बिछाने की लागत ज्ञात करें यदि कालीन 60 सेमी चौड़ी है

A room is in the shape of a cuboid, with dimensions 12m x 10m x 3m. What is the cost of painting the four walls of the room at the rate of Rs. 50 per sq.m? एक कमरा घनाभ के आकार में है जिसकी लंबाई, चौड़ाई और ऊंचाई 12 मी x 10 मी x 3 मी है | 50 रुपये प्रति वर्ग मीटर की दर से इस कमरे की चार दीवारों को रंगने की लागत ज्ञात करें|

What will be the compound interest on a sum of Rs 1200 for 2 years at the rate of 20% per annum when the interest is compounded yearly? 1200 रुपये पर 20% प्रति वर्ष की दर से 2 वर्ष का चक्रवृद्धि ब्याज ज्ञात करें जब ब्याज की चक्रवृद्धि वार्षिक है |

The curved surface area of a cylinder is 594 cm^2 and its volume is 1336.5 cm^3 . What is the height (in cm) of the cylinder? एक बेलन का वक्र पृष्ठिय 594 से.मी.^2 है तथा उसका आयतन 1336.5 से.मी.^3 है। बेलन को ऊँचाई (से.मी.) क्या हैं ।

The area of field in shape of a regular hexagon is 2400 sqrt3 m^2 .The cost of fencing the field at ₹ 16.80 metre is: सम षट्भुज के आकार वाले एक मैदान का क्षेत्रफल 2400 sqrt3 वर्ग मीटर है | 16.80 रुपये प्रति मीटर की दर से इस मैदान पर बाड़ लगाने की लागत ज्ञात कीजिए |

If the sum of radius and height of a solid cylinder is 20 cm and its total surface area is 880 cm^2 then its volume is यदि किसी ठोस बेलन की त्रिज्या ऊंचाई का जोड़ 20 से.मी. हो और उसका कूल पृष्ठीय क्षेत्रफल 880 से.मी.^2 हो तो उसकाआयतन क्या होगा?

A swimming pool is 40 m in length, 30 m in breadth and 2.2 m in depth. The cost of cementing its floor and the four sides at Rs. 25//m^2 is: एक तरणताल की लंबाई 40 मी, चौड़ाई 30 मी तथा गहराई 2.2 मीटर है | 25 रुपये प्रति वर्ग मीटर की दर से इसके तल तथा इसकी चारों भुजाओं पर सीमेंट चढ़ाने की लागत ज्ञात करें |

PINNACLE-MENSURATION-EXERCISE
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  2. The unequal side of an isosceles triangle is 2cm. The medians drawn to...

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  4. A steel vessel has a base of length 60 cm and breadth 30 cm. Water is ...

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  6. Original breadth of a rectangular box is 20cm. The box was then remade...

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  8. If the height of an equilateral triangle is 10 sqrt3 cm, the area is: ...

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  9. A tall rectangular vessel is half filled with water. The base dimensio...

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  10. The dimensions of a swimming pool are 66m × 35m × 3m . How many hours ...

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  11. Find the cost of carpeting a room which is 11m long and 6m broad by a ...

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  12. A field is 119m x 18 m in dimension. A tank 17m x 6m x 3m is dug out i...

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  13. A swimming pool is 40 m in length, 30 m in breadth and 2.2 m in depth....

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  14. If the area of a regular hexagon is 108 sqrt 3 cm^2, its perimeter is:...

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  15. A square piece of cardboard with side 12 cm has a small square of 2 cm...

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  16. The area of a right angled triangle having base 24 cm and hypotenuse 2...

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