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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 by yogita (1.8k points)

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Posing a question Work with a partner to write at least five ratio statements about this quilt, which has white, blue, and purple squares. How many squares of each colour will be there in 12 such

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

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44 cows can graze a field in 9 days. How many less/more cows will graze the same field in 12

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

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30 persons can reap a field in 17 days. How many more persons should be engaged to reap the same field in 10

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

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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 by vaibhav (1.7k points)

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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 by nikhil (1.8k points)

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A water tank casts a shadow 21 m long. A tree of height 9.5 m casts a shadow 8 m long at the same time. The lengths of the shadows are directly proprotional to their heights. Find the height of the tank

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

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Pattern B consists of four tiles like pattern A. Write a proportion involving red dots and blue dots in pattern A and B. Are they in direct proportion? If yes, write the constant of proportion.

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

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A bowler throws a cricket ball at a speed of 120 km/h. How long does this ball take to travel a distance of 20 metres to reach the

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

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Kritika is following this recipe for bread. She realises her sister used most of sugar syrup for her breakfast. Kritika has only `1/6` cup of syrup, so she decides to make a small size of bread. How much of each ingredient shall she use? Bread recipe 1 cup quick cooking oats 2 cups bread flour `1/3` cup sugar syrup 1 tablespoon cooking oil `1 1/3` cups water 3 tablespoons yeast 1 teaspoon

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

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Many schools have a recommended students-teacher ratio as 35:1. Next year, school expects an increase in enrolment by 280 students. How many new teachers will they have to appoint to maintain the students-teacher

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

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Kusum always forgets how to convert miles to kilometres and back again. However she remembers that her car’s speedometer shows both miles and kilometres. She knows that travelling 50 miles per hour is same as travelling 80 kilometres per hour. To cover a distance of 200 km, how many miles Kusum would have to

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

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The volume of a cube is 64 `cm^3`. Its surface area

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

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If the radius of a cylinder is tripled but its curved surface area is unchanged, then its height will

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

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All six faces of a cuboid are __________ in shape and of ______

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

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The circumference of the front wheel of a cart is 3 m long and that of the back wheel is 4 m long. What is the distance travelled by the cart, when the front wheel makes five more revolutions than the rear

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

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Four horses are tethered with equal ropes at 4 corners of a square field of side 70 metres so that they just can reach one another. Find the area left ungrazed by the

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

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Most of the sailboats have two sails, the jib and the mainsail. Assume that the sails are triangles. Find the total area of each sail of the sail boats to the nearest tenth.

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

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A boy is cycling such that the wheels of the cycle are making 140 revolutions per hour. If the diameter of the wheel is 60 cm, calculate the speed in km/h with which the boy is

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

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Find the length of the largest pole that can be placed in a room of dimensions `12 m xx 4 m xx 3 m`. Find the area of the following fields. All dimensions are in

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

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