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The value of a car, bought for Rs 4,40,000 depreciates each year by 10% of its value at the beginning of that year. So its value becomes Rs 3,08,000 after three

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

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In 2007 – 08, the number of students appeared for Class X examination was 1,05,332 and in 2008–09, the number was 1,16,054. If 88,151 students pass the examination in 2007–08 and 103804 students in 2008–09. What is the increase or decrease in pass % in Class X

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

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Ashima sold two coolers for Rs 3,990 each. On selling one cooler she gained 5% and on selling the the other she suffered a loss of 5%. Find her overall gain or loss % in whole

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

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Sunscreens block harmful ultraviolet (UV) rays produced by the sun. Each sunscreen has a Sun Protection Factor (SPF) that tells you how many minutes you can stay in the sun before you receive one minute of burning UV rays. For example, if you apply sunscreen with SPF 15, you get 1 minute of UV rays for every 15 minutes you stay in the sun. 1. A sunscreen with SPF 15 allows only `1/15` of the sun’s UV rays. What per cent of UV rays does the sunscreen abort? 2. Suppose a sunscreen allows 25% of the sun’s UV rays. a.

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

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A real estate agent receives Rs 50,000 as commission, which is 4% of the selling price. At what price does the agent sell the

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

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Which quantities in the previous question vary inversely with each

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

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If a tree 24 m high casts a shadow of 15 m, then the height of a pole that casts a shadow of 6 m under similar conditions is 9.6

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

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When two quantities are related in such a manner that if one increases and the other decreases, then they always vary

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

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For fixed time period and rate of interest, the simple interest is directly proportional to the

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

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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 by purvi (1.8k points)

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A circle of maximum possible size is cut from a square sheet of board. Subsequently, a square of maximum possible size is cut from the resultant circle. What will be the area of the final

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

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Curved surface area of a cylinder of radius h and height r is

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

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The area of a trapezium become 4 times if its height gets

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

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The walls and ceiling of a room are to be plastered. The length, breadth and height of the room are 4.5 m, 3 m, and 350 cm respectively. Find the cost of plastering at the rate of Rs 8 per

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

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If the length of each edge of a cube is tripled, what will be the change in its

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

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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 by nishit (1.8k points)

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Four times the area of the curved surface of a cylinder is equal to 6 times the sum of the areas of its bases. If its height is 12 cm, find its curved surface

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

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The following graph shows the number of people present at a certain shop at different times. Observe the graph and answer the following questions. (a) What type of a graph is this?(b) What information does the graph

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

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A man started his journey on his car from location A and came back. The given graph shows his position at different times during the whole journey. (a) Which journey, forward or return, was of longer duration?(b) For how many hours did he not move?(c) At what time did

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

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Ajita starts off from home at 07.00 hours with her father on a scooter that goes at a uniform speed of 30 km/h and drops her at her school after half an hour. She stays in the school till 13.30 hours and takes an auto rickshaw to return home. The rickshaw has a uniform speed of 10 km/h. Draw the graph for the above situation and also determine the distance of Ajita’s school from her

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

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