site stats

The diameter of a roller 120cm long is 84cm

WebThe diameter of roller 1.5 m long is 84 cm. If it takes 100 revolutions to level a playground, find the cost of levelling this ground at the rate of 50 paise per square metre. ... The diameter of a roller 120 cm long is 84 cm. If it takes 500 complete revolutions to level a playground, dtermine the cost of levelling it at the rate of 30 paise ... WebJan 19, 2024 · Diameter = d = 84cm Radius = r = d/2 = 42cm Length = l = 120 cm T.S.A of cylinder = 2πrh = 2 x 22/7 x 42 x 120 = 31680 cm² Area levelled by 500 revolution = Area of playground = 500 x 31680cm² = 15840000 cm² [ change into m] = 1584 m² Advertisement Still have questions? Find more answers Ask your question

the diameter of the roller 120 cm long is 84 cm if it takes 500 ...

WebSep 23, 2024 · answered the diameter of a roller 120cm long is 84cm if it takes 500 complete Revolution to level a playground determine the cost of levelling it at the rate of 45 paise per square metre Advertisement Answer 12 people found it helpful Divyasamota Diameter=84cm therefore radius=42cm height=120cm area rolled in 1 revolution=c.s.a WebApr 21, 2024 · The diameter of a roller 120cm long is 84cm. If it takes 500 complete revolutions to level a playground, determine the cost of levelling it at the rate plymouth engineered shapes hopkinsville ky https://dlwlawfirm.com

The diameter of a roller is 84cm and its length is 120cm . It

WebFeb 20, 2024 · The diameter of a roller \\[1.5\\] m long is 84 cm. If it takes 100 revolutions to level this playground, find the cost of levelling this ground at the rate of 50 paise per square meter.. Ans: Hint: First, we will convert the diameter of the roller i... WebJan 7, 2024 · Step-by-step explanation: Given; diameter= 84cm .°. radius= 42cm Height= 120cm Therefore; CSA of a Cylinder= 2pi r h =2 × 22/7 × 42 × 120 =44× 6 × 120 =31680 cm^2 Total area of the play ground = 31680 × 500 =15840000 cm^2 = 1584 m^2 Cost- Rs. 25 for 1 m^2 For 1584 m^2 = 1584 × 25 = Rs. 39600 .°. the cost will be Rs. 39,600/-. Advertisement WebJun 18, 2024 · Best answer. 2r = 84cm. ∴ r = 84/2cm = 42cm. h = 120cm. Area of the playground leveled in one complete revolution = 2 π rh. = 2 × 22/7 × 42 × 120 × 31680cm 2. ∴ Area of the playground = 31680 × 500cm 2. = (31680 x 500)/ (100 x 100)m 2 = 1584m 2. ∴ Cost of leveling @ Rs 25 per square metre = Rs 1584 × 25 = 39600. plymouth eoar login

The diameter of a road roller, 120cm long is 84cm. If it takes 500 ...

Category:The diameter of a roller, 1 m long, is 84 cm. If it takes 500 …

Tags:The diameter of a roller 120cm long is 84cm

The diameter of a roller 120cm long is 84cm

The diameter of roller 1.5 m long is 84 cm if it takes 100 ... - BYJU

WebMar 14, 2012 · the diameter of the roller 120 cm long is 84 cm. if it takes 500 complete revolutions to level a playground, determine the cost of levelling at the rate of 30 paise per sq. m. ... Share 28. Diameter = 84cm. Radius = 42cm. Height = 120cm. 1 revolution = LSA of roller = 2 x (22/7) x 42 6 x 120 = 31680 cm 2. So, 500 revolutions = 31680 x 500 ... WebSep 20, 2024 · This is the Solution of Question From RD SHARMA book of CLASS 9 CHAPTER SURFACE AREAS AND VOLUMES This Question is also available in R S AGGARWAL book of CLA...

The diameter of a roller 120cm long is 84cm

Did you know?

WebSolution. Diameter of a roller =84 cm. ∴ Radius =842=42 cm. and height (h)=1.5 m=1.5×100 cm=150 cm [∵1 m=100 cm] ∴ Curved surface area of cylinder =2πrh. =2×227×42×150cm2=39600 cm2. Area covered in 1 revolution = Curved surface area of the given cylinder. ∴ Area covered in 100 revolutions. =39600×100=3960000 cm2. WebThe diameter of a road roller of length 120cm is 84cm . If it takes 500 complete ... #viralvideo crazy aalam parri 2.14K subscribers Subscribe Like Share No views 1 minute ago Show more...

WebQuestion The diameter of a roller 120 cm long is 84 cm. If it takes 500 completed revolutions to level a play ground, determine the cost of levelling it at the rate of Rs. 2.50 per square metre. Hard Solution Verified by Toppr Roller is in the form of a cylinder as shown in the image. Given, h=120 cm , Radius r= 2Diameter= 284=42 cm

WebSolution Diameter of a roller =84 cm ∴ Radius =842=42 cm and height (h)=1.5 m=1.5×100 cm=150 cm [∵1 m=100 cm] ∴ Curved surface area of cylinder =2πrh =2×227×42×150cm2=39600 cm2 Area covered in 1 revolution = Curved surface area of the given cylinder ∴ Area covered in 100 revolutions. =39600×100=3960000 cm2 … WebThe diameter of a roller is 84 cm and its length is 120 cm. It takes 500 complete revolutions to move once over to level a playground. Find the area of the playground in m 2 ? [Assume .π=22/7]A. 1984 m 2B. 1584 m 2С. 2584 m 2D. 1534 m 2

WebThe diameter of a roller is 84 cm and its length is 120 cm. It takes 500 complete revolutions to move once over to level a playground. Find the area of the playground in m 2 Medium Solution Verified by Toppr Given: Height =120cm, R= 284=42 cm ⇒CSA=2πrh=2× 722×42×120cm 2=31680 cm 2 ⇒Area =500×CSA =500×31680 cm 2

WebDiameter of roller = 84 c m. Therefore, radius ( r) = 84 2 = 42 c m. Length of the roller ( h) = 120 c m. Step 2. Finding curved surface area, C S A of roller. C S A of roller = C S A of cylinder. π π = 2 πrh = 2 × 22 7 × 42 × 120 = 44 × 6 × 120 = 44 × 720 = 31680 cm 2. That means area covered by roller in one revolution = 31680 c m 2. plymouth enterprise branchWebThe diameter of a roller is 84 cm and its length is 120 cm. It takes 500 complete revolutions to move once over to level a playground. Find the area of the playground in m². Solution: The roller is cylindrical in shape and hence it is considered as a right circular cylinder. plymouth enterprise car hireWebJun 22, 2024 · This is the Solution of Question From RD SHARMA book of CLASS 9 CHAPTER SURFACE AREA AND VOLUME This Question is also available in R S AGGARWAL book of CLASS... plymouth england to plymouth massachusettsWebJan 16, 2024 · Step-by-step explanation: Diameter of road roller = 120 cm radius of road roller = 120/2 = 60 cm length ( height ) of road roller = 84 cm Lateral surface area of the road roller = 2πrh = 2×22/7×60×84 ( cut 84 with 7 = 12) = 2×22×60×12 = 44×720 =31680 cm² Area of playground = 500× LSA of road roller = 500×31680 = 15840000m² plymouth enterprise rent a carWebThe diameter of a roller is 84 cm and its length is 120cm. It takes 500 complete revolution to move once over to level playground. Find the area of the playground in m2. View More Related Videos Surface Area of Solids MATHEMATICS Watch in App Explore more Curved Surface area of a right circular cylinder Standard IX Mathematics CBSE ICSE IAS JEE plymouth equipment rental canton miWebThe diameter of a roller is 84 cm and its length is 120cm. It. The diameter of a roller is 84cm and its length is 120cm It takes 500 complete revolutions to move once over to level a playground Find the plymouth england to londonWebMay 27, 2024 · The diameter of a roller 120cm long is 84cm. If it take 500 complete revolutions to level a playground, determine the cost of levelling it at the rate of 30 paise per square metre. class-9 surface-area-and-volume-of-a-right-circular-cylinder 1 Answer 0 votes answered May 27, 2024 by Dhruvan (88.7k points) selected May 27, 2024 by Lohith01 plymouth ess