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The cost per head if two teachers are also going with the

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

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A sum of Rs 10,000 is borrowed at a rate of interest 15% per annum for 2 years. Find the simple interest on this sum and the amount to be paid at the end of 2

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

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Maria invested Rs 8,000 in a business. She would be paid interest at 5% per annum compounded annually. Find The interest for the 3rd

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

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Add: 7xy + 5yz – 3zx, 4yz + 9zx – 4y , –3xz + 5x –

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

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Find the areas of rectangles with the following pairs of monomials as their lengths and breadths respectively.`(p, q); (10m, 5n); (20x^2, 5y^2); (4x, 3x^2); (3mn,

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

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Obtain the product of a, 2b, 3c, 6abc

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

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Carry out the multiplication of the expressions in each of the following pairs. `a + b,

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

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Use the identity `(x + a) (x + b) = x^2 + (a + b) x + ab` to find the following products. (x + 3) (x + 7)

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

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Find the following squares by using the identities. `(b –

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

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Using `a^2 – b^2 = (a + b) (a – b)`, find `12.1^2 –

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

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For each given solid, identify the top view, front view and side view. #fig (i) (ii)

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

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The shape of the top surface of a table is a trapezium. Find its area if its parallel sides are 1 m and 1.2 m and perpendicular distance between them is 0.8 m.

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

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Length of the fence of a trapezium shaped field ABCD is 120 m. If BC = 48 m, CD = 17 m and AD = 40 m, find the area of this field. Side AB is perpendicular to the parallel sides AD and

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

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The internal measures of a cuboidal room are `12 m xx 8 m xx 4 m`. Find the total cost of whitewashing all four walls of a room, if the cost of white washing is Rs 5 per `m^2`. What will be the cost of white washing if the ceiling of the room is also whitewashed.

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

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The lateral surface area of a hollow cylinder is 4224 `cm^2`. It is cut along its height and formed a rectangular sheet of width 33 cm. Find the perimeter of rectangular

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

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A road roller takes 750 complete revolutions to move once over to level a road. Find the area of the road if the diameter of a road roller is 84 cm and length is 1

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

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A rectangular paper of width 14 cm is rolled along its width and a cylinder of radius 20 cm is formed. Find the volume of the cylinder (Fig 11.45)? (Take `22/7` for

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

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Given a cylindrical tank, in which situation will you find surface area and in which situation volume. To find how much it can

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

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Given a cylindrical tank, in which situation will you find surface area and in which situation volume. To find the number of smaller tanks that can be filled with water from

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

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Evaluate. `(– 4)^(– 2)`

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

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