Questions by purvi

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Kritika ordered one pizza and one garlic bread from a pizza store and paid Rs 387 inclusive of taxes of Rs 43. Find the

asked Jan 17, 2022 in 8th-maths

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

asked Jan 17, 2022 in 8th-maths

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At a toy shop price of all the toys is reduced to 66% of the original price. (a) What is the sale price of a toy that originally costs Rs 90? (b) How much money would you save on a toy costing Rs

asked Jan 17, 2022 in 8th-maths

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With the decrease in prices of tea by 15% Tonu, the chaiwallah, was able to buy 2 kg more of tea with the same Rs 45 that he spent each month on buying tea leaves for his chai shop. What was the reduced price of tea? What was the original price of tea?

asked Jan 17, 2022 in 8th-maths

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The per cent of pure gold in 14 carat gold is about 58.3%. A 14 carat gold ring weighs 7.6 grams. How many grams of pure gold are in the

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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100 persons had food provision for 24 days. If 20 persons left the place, the provision will last

asked Jan 17, 2022 in 8th-maths

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If two quantities x and y vary directly with each other,

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 p and q are in inverse variation then (p + 2) and (q – 2) are also in inverse

asked Jan 17, 2022 in 8th-maths

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The number of workers and the time to complete a job is a case of direct

asked Jan 17, 2022 in 8th-maths

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From the following table, determine if x and y are in direct proportion or not. x 4 7 10 16 y 24 42 60 96

asked Jan 17, 2022 in 8th-maths

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At a particular time, the length of the shadow of Qutub Minar whose height is 72 m is 80 m. What will be the height of an electric pole, the length of whose shadow at the same time is 1000

asked Jan 17, 2022 in 8th-maths

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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

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Match each of the entries in Column I with the appropriate entry in Column II Column I Column II 1. x and y vary inversely to each other A. x y = Constant 2. Mathematical representation of inverse B. y will increase in proportion variation of quantities p and q 3. Mathematical representation of C. xy = Constant direct variation of quantities m and n 4. When x = 5, y = 2.5 and when D. p ∝ 1 q y = 5, x = 10

asked Jan 17, 2022 in 8th-maths

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The following table shows the distance travelled by one of the new eco-friendly energy-efficient cars travelled on gas. Litres of gas 1 0.5 2 2.5 3 5 Distance (km) 15 7.5 30 37.5 45 75 Which type of properties are indicated by the table? How much distance will be covered by the car in 8 litres of

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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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

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The perimeter of a rectangle becomes __________ times its original perimeter, if its length and breadth are

asked Jan 17, 2022 in 8th-maths

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The surface area of a cube formed by cutting a cuboid of dimensions `2 xx 1 xx 1 in 2` equal parts is 2 sq.

asked Jan 17, 2022 in 8th-maths

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