Questions by krutika

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Is a square prism same as a cube?

asked Jan 18, 2022 in 8th-maths

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A flooring tile has the shape of a parallelogram whose base is 24 cm and the corresponding height is 10 cm. How many such tiles are required to cover a floor of area 1080 `m^2`? (If required you can split the tiles in whatever way you want to fill up the

asked Jan 18, 2022 in 8th-maths

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An ant is moving around a few food pieces of different shapes scattered on the floor. For which food-piece would the ant have to take a longer round? Remember,circumference of a circle can be obtained by using the expression c = 2πr, where r is the radius of the

asked Jan 18, 2022 in 8th-maths

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The area of a rhombus is 240 `cm^2` and one of the diagonals is 16 cm. Find the other

asked Jan 18, 2022 in 8th-maths

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Mohan wants to buy a trapezium shaped field. Its side along the river is parallel to and twice the side along the road. If the area of this field is 10500 `m^2` and the perpendicular distance between the two parallel sides is 100 m, find the length of the side along the

asked Jan 18, 2022 in 8th-maths

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Describe how the two figures at the right are alike and how they are different. Which box has larger lateral surface

asked Jan 18, 2022 in 8th-maths

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A rectangular piece of paper 11 cm × 4 cm is folded without overlapping to make a cylinder of height 4 cm. Find the volume of the

asked Jan 18, 2022 in 8th-maths

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asked Jan 18, 2022 in 8th-maths

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Simplify and express the result in power notation with positive exponent.

asked Jan 18, 2022 in 8th-maths

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Find the value of. `(2^(– 1) xx 4^(– 1)) ÷ 2^(–

asked Jan 18, 2022 in 8th-maths

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Find the value of. `(3^(– 1) + 4^(– 1) + 5^(–

asked Jan 18, 2022 in 8th-maths

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Express the following numbers in standard form. 0.000035

asked Jan 18, 2022 in 8th-maths

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Express the following numbers in standard form.

asked Jan 18, 2022 in 8th-maths

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An electric pole, 14 metres high, casts a shadow of 10 metres. Find the height of a tree that casts a shadow of 15 metres under similar

asked Jan 18, 2022 in 8th-maths

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The scale of a map is given as 1:30000000. Two cities are 4 cm apart on the map. Find the actual distance between

asked Jan 18, 2022 in 8th-maths

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A mixture of paint is prepared by mixing 1 part of red pigments with 8 parts of base. In the following table, find the parts of base that need to be added.

asked Jan 18, 2022 in 8th-maths

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A photograph of a bacteria enlarged 50,000 times attains a length of 5 cm as shown in the diagram. What is the actual length of the bacteria? If the photograph is enlarged 20,000 times only, whatwould be its enlarged

asked Jan 18, 2022 in 8th-maths

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There are 100 students in a hostel. Food provision for them is for 20 days. How long will these provisions last, if 25 more students join the

asked Jan 18, 2022 in 8th-maths

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A farmer has enough food to feed 20 animals in his cattle for 6 days. How long would the food last if there were 10 more animals in his

asked Jan 18, 2022 in 8th-maths

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A school has 8 periods a day each of 45 minutes duration. How long would each period be, if the school has 9 periods a day, assuming the number of school hours to be the

asked Jan 18, 2022 in 8th-maths

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