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Find the product of the cube of (–2) and the square of

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

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Simplify: -1. `(((-)/2)^(-2))^3 xx (1/3)^(-4) xx 3^(-1) xx

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

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By what number should `(–15)^(–1)` be divided so that quotient may be equal to `(–15)^(–1)`

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

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Find x so that `(2/9)^3 xx (2/9)^(-6) =

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

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About 230 billion litres of water flows through a river each day. How many litres of water flows through that river in a week? How many litres of water flows through the river in an year? Write your answer in standard

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

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Two machines can be hooked together. When something is sent through this hook up, the output from the first machine becomes the input for the second. (a) Which two machines hooked together do the same work a `( xx 10^2)` machine does? Is there more than one arrangement of two machines that will work? (b) Which stretching machine does the same work as two `(xx 2)` machines hooked together?

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

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What will the following machine do to a 2 cm long piece of chalk?

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

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Mass of Mars is `6.42 xx 10^29` kg and mass of the Sun is `1.99 xx 10^30` kg. What is the total

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

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Vishakha offers a discount of 20% on all the items at her shop and still makes a profit of 12%. What is the cost price of an article marked at Rs

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

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Find the compound interest on Rs 48,000 for one year at 8% per annum when compounded half

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

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The compound interest on Rs 50,000 at 4% per annum for 2 years compounded annually

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

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The marked price of an article is Rs 500. The shopkeeper gives a discount of 5% and still makes a profit of 25%. Find the cost price of the

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

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In the year 2001, the number of malaria patients admitted in the hospitals of a state was 4,375. Every year this number decreases by 8%. Find the number of patients in

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

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In Delhi University, in the year 2009 – 10, 49,000 seats were available for admission to various courses at graduation level. Out of these 28,200 seats were for the students of General Category while 7,400 seats were reserved for SC and 3,700 seats for ST. Find the per centage of seats available for

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

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If principal = Rs 1,00,000. rate of interest = 10% compounded half yearly. Find Interest for next 6

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

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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 by nishit (1.8k points)

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Ayesha announced a festival discount of 25% on all the items in her mobile phone shop. Ramandeep bought a mobile phone for himself. He got a discount of Rs 1,960. What was the marked price of the mobile

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

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A lady bought an air-conditioner for Rs 15,200 and spent Rs 300 and Rs 500 on its transportation and repair respectively. At what price should she sell it to make a gain of

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

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For an amount, explain why, a 20% increase followed by a 20% decrease is less than the original

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

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The human body is made up mostly of water. In fact, about 67% of a person’s total body weight is water. If Jyoti weights 56 kg, how much of her weight is

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

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