Questions by vaibhav

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__________ of a solid is the measurement of the space occupied by

asked Jan 17, 2022 in 8th-maths

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Two cylinders with equal volume will always have equal surface

asked Jan 17, 2022 in 8th-maths

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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

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A boy is cycling such that the wheels of the cycle are making 140 revolutions per hour. If the diameter of the wheel is 60 cm, calculate the speed in km/h with which the boy is

asked Jan 17, 2022 in 8th-maths

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A cuboidal tin box opened at the top has dimensions `20 cm xx 16 cm xx 14 cm`. What is the total area of metal sheet required to make 10 such

asked Jan 17, 2022 in 8th-maths

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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 17, 2022 in 8th-maths

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A housing society consisting of 5,500 people needs 100 L of water per person per day. The cylindrical supply tank is 7 m high and has a diameter 10 m. For how many days will the water in the tank last for the

asked Jan 17, 2022 in 8th-maths

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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 17, 2022 in 8th-maths

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Factorise the following using the identity `a^2 – b^2 = (a + b) (a – b)`. `x^2 –

asked Jan 17, 2022 in 8th-maths

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The following expressions are the areas of rectangles. Find the possible lengths and breadths of these rectangles. `x^2 – 7x +

asked Jan 17, 2022 in 8th-maths

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The following expressions are the areas of rectangles. Find the possible lengths and breadths of these rectangles. `x^2 + 9x +

asked Jan 17, 2022 in 8th-maths

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Factorise the expressions and divide them as directed: `(3x^2 – 48) -: (x –

asked Jan 17, 2022 in 8th-maths

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Find the value of a, if `8a = 35^2 –

asked Jan 17, 2022 in 8th-maths

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Find the value of a, if `pqa = (3p + q)^2 – (3p –

asked Jan 17, 2022 in 8th-maths

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Very small numbers can be expressed in standard form using positive

asked Jan 17, 2022 in 8th-maths

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`(1/10)^0` is equal

asked Jan 17, 2022 in 8th-maths

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Very large numbers can be expressed in standard form by using _________

asked Jan 17, 2022 in 8th-maths

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Find the value `[4^(–1) +3^(–1) +

asked Jan 17, 2022 in 8th-maths

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The standard form of `(1/100000000)` is

asked Jan 17, 2022 in 8th-maths

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`329.25 = 3 xx 10^2 + 2 xx 10^1 + 9 xx 10^0 + 2 xx 10^–1 + 5 xx

asked Jan 17, 2022 in 8th-maths

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