Recent questions tagged #mcq

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Three cubes of metal whose edges are 6 cm, 8 cm and 10 cm respectively are melted to form a single cube. The edge of the new cube

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

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A covered wooden box has the inner measures as 115 cm, 75 cm and 35 cm and thickness of wood as 2.5 cm. The volume of the wood

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

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The ratio of radii of two cylinders is 1: 2 and heights are in the ratio 2:3. The ratio of their volumes

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

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Two cubes have volumes in the ratio 1:64. The ratio of the area of a face of first cube to that of the other

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

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The surface areas of the six faces of a rectangular solid are 16, 16, 32, 32, 72 and 72 square centimetres. The volume of the solid, in cubic centimetres,

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

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Ramesh has three

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

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If R is the radius of the base of the hat, then the total outer surface area of the hat is

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

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Multiplicative inverse of `2^7`

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

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The human body has about 100 billion cells. This number can be written in exponential form

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

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In `2^n`, n is known

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

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`3^(–2)` can be written

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

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The value of `1/4^-2`

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

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The value of `3^5 -: 3^(–6)`

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

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The value of `(2/5)^-2`

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

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The reciprocal of `(2/5)^-1`

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

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The multiplicative inverse of `10^(–100)`

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

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The value of `(–2)^(2xx3–1)`

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

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The value of `(-2/3)^4` is equal

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

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The multiplicative inverse of `(-5/9)^-99`

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

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