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A factory requires 42 machines to produce a given number of articles in 63 days. How many machines would be required to produce the same number of articles in 54

asked Jan 18, 2022 in 8th-maths by Arun (1.7k points)

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Study the graph given below of a person who started from his homeand returned at the end of the day. Answer the questions that follow. (a) At what time did the person start from his home?(b) How much distance did he travel in the first four hours of hisjourney?(c) What was he doing from 3 pm to 5 pm?(d) What was the total distance travelled by him throughout theday?(e) Calculate the distance covered by him in the first 8 hours of hisjourney.(f) At what time did he cover 16 km of his journey?(g) Calculate the average speed of the man

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

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Use a suitable identity to get each of the following products. (2a – 7) (2a –

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

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Use the identity `(x + a) (x + b) = x^2 + (a + b) x + ab` to find the following products. (xyz – 4) (xyz –

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

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Find the height of a cuboid whose volume is 275 `cm^3` and base area is 25 `cm^2`

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

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Simplify.

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

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Express the following numbers in usual form. `3.52 xx

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

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Express the following numbers in usual form. `3 xx 10^(–

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

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Express each of the following in exponential form: (1) `(-1296)/14641` (2) `(-125/343)` (3) `400/3969` (4)

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

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In a hostel of 50 girls, there are food provisions for 40 days. If 30 more girls join the hostel, how long will these provisions

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

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Study the graph given below of a person who started from his homeand returned at the end of the day. Answer the questions that follow. (a) At what time did the person start from his home?(b) How much distance did he travel in the first four hours of hisjourney?(c) What was he doing from 3 pm to 5 pm?(d) What was the total distance travelled by him throughout theday?(e) Calculate the distance covered by him in the first 8 hours of hisjourney.(f) At what time did he cover 16 km of his journey?(g) Calculate the average speed of the man

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

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Find the amount and the compound interest on Rs 10,000 for `1 1/2` years at 10% per annum, compounded half yearly. Would this interest be more than the interest he would get if it was compounded

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

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The floor of a building consists of 3000 tiles which are rhombus shaped and each of its diagonals are 45 cm and 30 cm in length. Find the total cost of polishing the floor,if the cost per `m^2` is Rs

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

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The distance between the Sun and the Earth is `1.496 xx 10^8` km and distance between the Earth and the Moon is `3.84 xx 10^8` m. During solar eclipse the Moon comes in between the Earth and the Sun. What is distance between the Moon and the Sun at that particular

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

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The ratio of the radius and height of a cylinder is 2:3. If its volume is 12,936 `cm^3`, find the total surface area of the

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

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The rational numbers `1/3` and `(-1)/3` are on the ________ sides of zero on the number

asked Jan 18, 2022 in 8th-maths by vaibhav (1.7k points)

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The multiplicative inverse of `(-3)/5 is 5/3`

asked Jan 18, 2022 in 8th-maths by vaibhav (1.7k points)

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The negative of 1 is 1

asked Jan 18, 2022 in 8th-maths by uday (1.6k points)

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For any rational number x, x + (–1) =

asked Jan 18, 2022 in 8th-maths by krutika (1.7k points)

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Solve the following: Select the rational numbers from the list which are also the integers.

asked Jan 18, 2022 in 8th-maths by nikhil (1.8k points)

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