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Radius of a cylinder is r and the height is h. Find the change in the volume if the (a) height is doubled. (b) height is doubled and the radius is halved. (c) height remains same and the radius is

asked Jan 17, 2022 in 8th-maths by sumit (1.6k points)

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A carpenter makes a box which has a volume of 13,400 `cm^3`. The base has an area of 670 `cm^2`. What is the height of the

asked Jan 17, 2022 in 8th-maths by vaibhav (1.7k points)

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A truck carrying 7.8 `m^3` concrete arrives at a job site. A platform of width 5 m and height 2 m is being contructed at the site. Find the length of the platform, constructed from the amount of concrete on the

asked Jan 17, 2022 in 8th-maths by vaibhav (1.7k points)

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The value of `(7^(–1) – 8^(–1))^(–1) – (3^(–1) – 4^(–1))^(–1)`

asked Jan 17, 2022 in 8th-maths by sumit (1.6k points)

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Some migratory birds travel as much as 15,000 km to escape the extreme climatic conditions at home. Write the distance in metres using scientific

asked Jan 17, 2022 in 8th-maths by uday (1.6k points)

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If a % is the discount per cent on a marked price x, then discount

asked Jan 17, 2022 in 8th-maths by uday (1.6k points)

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Every point on the x axis is of the

asked Jan 17, 2022 in 8th-maths by nikhil (1.8k points)

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Write the coordinates of all the points in the given

asked Jan 17, 2022 in 8th-maths by uday (1.6k points)

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Following graph shows a comparison of the approximate sale of items manufactured by a company for the first two years of its operation. (i) In which months there was maximum difference inthe sale of items of two

asked Jan 17, 2022 in 8th-maths by Arun (1.7k points)

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Comparison of parts of a whole may be done by

asked Jan 17, 2022 in 8th-maths by purvi (1.8k points)

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The point (3, 4) is at a distance

asked Jan 17, 2022 in 8th-maths by vaibhav (1.7k points)

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A point which lies on both the axis is

asked Jan 17, 2022 in 8th-maths by krutika (1.7k points)

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The coordinates of a point at a distance of 3 units from the x axisand 6 units from the y axis

asked Jan 17, 2022 in 8th-maths by Simran (1.8k points)

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In the given figure the position of the book on the table may be given

asked Jan 17, 2022 in 8th-maths by nikhil (1.8k points)

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The graph given below compares the sales of ice creams of two vendorsfor a week.Observe the graph and answer the following questions. (a)On which day did the sale of vendor A increase the most as compared to the previous day?(b) On which day was the difference in sales the

asked Jan 17, 2022 in 8th-maths by nikhil (1.8k points)

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The table given below shows the temperatures recorded on a day at different times. Observe the table and answer the following questions. (a) What is the temperature at 8 am?(b) At what time is the temperature

asked Jan 17, 2022 in 8th-maths by sumit (1.6k points)

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The following graph shows the change in temperature of a block of ice when heated. Use the graph to answer the following questions: (a) For how many seconds did the ice block have no change in temperature?(b) For how long was there a change in

asked Jan 17, 2022 in 8th-maths by Simran (1.8k points)

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The following graph shows the journey made by two cyclists, onefrom town A to B and the other from town B to A. (a) At what time did cyclist II rest? How long did the cyclist

asked Jan 17, 2022 in 8th-maths by yogita (1.8k points)

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The following graph shows the journey made by two cyclists, onefrom town A to B and the other from town B to A. (a) At what time did the two cyclists

asked Jan 17, 2022 in 8th-maths by Simran (1.8k points)

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This graph shows the per cent of students who dropped out of school after completing High School. The point labelled A shows that, in 1996, about 4.7% of students dropped

asked Jan 17, 2022 in 8th-maths by purvi (1.8k points)

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