Questions by purvi

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If principal = Rs 1,00,000. rate of interest = 10% compounded half yearly. Find Amount after 6

asked Jan 17, 2022 in 8th-maths

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A new computer costs Rs 1,00,000. The depreciation of computers is very high as new models with better technological advantages are coming into the market. The depreciation is as high as 50% every year. How much will the cost of computer be after two

asked Jan 17, 2022 in 8th-maths

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If x and y are inversely proportional then _____ = k where k is positive

asked Jan 17, 2022 in 8th-maths

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If the cost of 10 pencils is Rs 90, then the cost of 19 pencils is Rs

asked Jan 17, 2022 in 8th-maths

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Under the condition that the temperature remains constant, the volume of gas is inversely proportional to its pressure. If the volume of gas is 630 cubic centimetres at a pressure of 360 mm of mercury, then what will be the pressure of the gas if its volume is 720 cubic centimetres at the same

asked Jan 17, 2022 in 8th-maths

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Both x and y vary inversely with each other. When x is 10, y is 6, which of the following is not a possible pair of corresponding values of x and

asked Jan 17, 2022 in 8th-maths

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If xy = 10, then x and y vary ______ with each

asked Jan 17, 2022 in 8th-maths

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When two quantities x and y are in _______ proportion or vary ______ they are written as `x prop

asked Jan 17, 2022 in 8th-maths

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If x varies inversely as y, then x – 60 y 2

asked Jan 17, 2022 in 8th-maths

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When the speed remains constant, the distance travelled is ______ proportional to the

asked Jan 17, 2022 in 8th-maths

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If two quantities x and y vary directly with each other, then ______ of their corresponding values remains

asked Jan 17, 2022 in 8th-maths

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When the distance is kept fixed, speed and time vary directly with each

asked Jan 17, 2022 in 8th-maths

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If d varies directly as `t^2`, then we can write `dt^2` = k, where k is some

asked Jan 17, 2022 in 8th-maths

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(i) Number of students in a hostel and consumption of food. (ii) Area of the walls of a room and the cost of white washing the walls. (iii) The number of people working and the quantity of work. (iv) Simple interest on a given sum and the rate of interest. (v) Compound interest on a given sum and the sum

asked Jan 17, 2022 in 8th-maths

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In a camp, there is enough flour for 300 persons for 42 days. How long will the flour last if 20 more persons join the

asked Jan 17, 2022 in 8th-maths

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Sobi types 108 words in 6 minutes. How many words would she type in half an

asked Jan 17, 2022 in 8th-maths

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Shabnam takes 20 minutes to reach her school if she goes at a speed of 6 km/h. If she wants to reach school in 24 minutes, what should be her

asked Jan 17, 2022 in 8th-maths

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Find the area of polygon ABCDEF, if AD = 18cm, AQ = 14 cm, AP = 12 cm, AN = 8 cm, AM = 4 cm, and FM, EP, QC and BN are perpendiculars to diagonal

asked Jan 17, 2022 in 8th-maths

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If the height of a cylinder becomes `1/4` of the original height and the radius is doubled, then which of the following will be

asked Jan 17, 2022 in 8th-maths

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The surface area of the three coterminus faces of a cuboid are 6, 15 and 10 `cm^2` respectively. The volume of the cuboid

asked Jan 17, 2022 in 8th-maths

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