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There is a circular pond and a footpath runs along its boundary. A person walks around it, exactly once keeping close to the edge. If his step is 66 cm long and he takes exactly 400 steps to go around the pond, find the diameter of the

asked Jan 18, 2022 in 8th-maths by krutika (1.7k points)

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A cube of side 5 cm is cut into as many 1 cm cubes as possible. What is the ratio of the surface area of the original cube to that of the sum of the surface areas of the smaller

asked Jan 18, 2022 in 8th-maths by Simran (1.8k points)

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Find the capacity of water tank, in litres, whose dimensions are 4.2 m, 3 m and 1.8

asked Jan 18, 2022 in 8th-maths by krutika (1.7k points)

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The capacity of a closed cylindrical vessel of height 1 m is 15.4 L. How many square metres of metal sheet would be needed to make

asked Jan 18, 2022 in 8th-maths by Arun (1.7k points)

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Match the expressions of column I with that of column II: Column I Column II (1) `(21x + 13y)^2` (a) `441x^2 – 169y^2` (2) `(21x – 13y)^2` (b) `441x^2 + 169y^2 + 546xy` (3) `(21x – 13y) (21x + 13y)` (c) `441x^2 + 169y^2 – 546xy` (d) `441x^2 – 169y^2 + 546xy`

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

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Express the product of `3.2 xx 10^6` and `4.1 xx 10^(–1)` in the standard

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

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Investigating Solar System The table shows the average distance from each planet in our solar system to the sun. (a) Complete the table by expressing the distance from each planet to the Sun in scientific

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

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A swimming pool can be filled in 4 hours by 8 pumps of the same type. How many such pumps are required if the pool is to be filled in `2 2/3`

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

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Data was collected on a student’s typing rate and graph was drawn as shown below. Approximately how many words had this student typed in 30

asked Jan 18, 2022 in 8th-maths by Simran (1.8k points)

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The following graph shows the number of people present at a certain shop at different times. Observe the graph and answer the following questions. (a) What is the busiest time of day at the shop?(b) How many people enter the shop when it opens?(c) About how many people are

asked Jan 18, 2022 in 8th-maths by sumit (1.6k points)

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The graph given below compares the price (in Rs) and weight of 6 bags (in kg) of sugar of different brands A, B, C, D, E, F. (a) Which brand(s) costs/cost more than Brand

asked Jan 18, 2022 in 8th-maths by uday (1.6k points)

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The points on the graph below represent the height and weight ofthe donkey, dog, crocodile, and ostrich shown in the drawing. (a) What are the two variables represented in the

asked Jan 18, 2022 in 8th-maths by yogita (1.8k points)

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For fixing a point on the graph sheet we need two

asked Jan 18, 2022 in 8th-maths by uday (1.6k points)

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Write the y-coordinate (ordinate) of each of the given

asked Jan 18, 2022 in 8th-maths by sumit (1.6k points)

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A four-digit number 4ab5 is divisible by 55. Then the value of b – a

asked Jan 18, 2022 in 8th-maths by Arun (1.7k points)

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If A 3 + 8 B = 150, then the value of A + B

asked Jan 18, 2022 in 8th-maths by vaibhav (1.7k points)

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The difference of three-digit number and the number obtained by putting the digits in reverse order is always divisible by 9 and

asked Jan 18, 2022 in 8th-maths by Arun (1.7k points)

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If then B =

asked Jan 18, 2022 in 8th-maths by vaibhav (1.7k points)

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If the digit 1 is placed after a 2-digit number whose tens is t and ones digit is u, the new number is

asked Jan 18, 2022 in 8th-maths by krutika (1.7k points)

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Find the multiplicative inverse of the following. –

asked Jan 18, 2022 in 8th-maths by Simran (1.8k points)

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