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Ravi starts for his school at 8:20 a.m. on his bicycle. If he travels at a speed of 10km/h, then he reaches his school late by 8 minutes but on travelling at 16 km/h he reaches the school 10 minutes early. At what time does the school

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

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There are 20 grams of protein in 75 grams of sauted fish. How many grams of protein is in 225 gm of that

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

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A volleyball court is in a rectangular shape and its dimensions are directly proportional to the dimensions of the swimming pool given below. Find the width of the pool.

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

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A regular hexagon is inscribed in a circle of radius r. The perimeter of the regular hexagon

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

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The figure ABCD is a quadrilateral in which AB = CD and BC = AD. Its area is

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

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Area of a quadrilateral ABCD is 20 `cm^2` and perpendiculars on BD from opposite vertices are 1 cm and 1.5 cm. The length of BD

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

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The volume of a cylinder becomes __________ the original volume if its radius becomes half of the original

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

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If the diagonal d of a quadrilateral is doubled and the heights `(h_1)` and `(h_2)` falling on d are halved, then the area of quadrilateral is

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

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The areas of any two faces of a cuboid are

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

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The area of a trapezium with equal non-parallel sides is 168 `m^2`. If the lengths of the parallel sides are 36 m and 20 m, find the length of the non-parallel

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

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

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A river 2 m deep and 45 m wide is flowing at the rate of 3 km per hour. Find the amount of water in cubic metres that runs into the sea per

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

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Find the area to be painted in the following block with a cylindrical hole. Given that length is 15 cm, width 12 cm, height 20 cm and radius of the hole 2.8 cm.

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

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Metallic discs of radius 0.75 cm and thickness 0.2 cm are melted to obtain 508.68 `cm^3` of metal. Find the number of discs melted (use π =

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

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Verify the following:

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

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Very small numbers can be expressed in standard form using positive

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

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Simplify

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

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For a fixed base, if the exponent decreases by 1, the number

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

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For a non-zero integer x, `x^7 -: x^12` is equal

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

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For a non-zero integer x, `(x^4)^(–3)` is equal

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

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