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Deepak BoraNewbie

Asked: August 9, 2020In: CBSE

Marbles of diameter 1.4 cm are dropped into a cylindrical beaker of diameter 7 cm, containing some water. Find the number of marbles that should be dropped into the beaker so that the water level rises by 5.6 cm.

Problem from RS Aggarwal book, problem number 30, page number 812, exercise 17B, chapter volume and surface area of solid.Read more

Deepak BoraNewbie

Asked: August 2, 2020In: CBSE, ICSE

In a flower bed, there are 43 rose plants in the first row, 41 in the second 39 in the third, and so on. There are 11 rose plants in the last row. How many rows are there in the flower bed?

An Important question based on Arithmetic progression Chapter of R.S Aggarwal book for ICSE & CBSE Board. Here An AP, ...Read more

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Deepak BoraNewbie

Asked: August 8, 2020In: CBSE

The inner diameter of a glass is 7 cm and it has a raised portion in the bottom in the shape of a hemisphere, as shown in the figure. If the height of the glass is 16 cm, find the apparent capacity and the actual capacity of the glass

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In the given problem shape of solid is cylinder. To find answer of this problem use cylinder volume formula. problem ...Read more

Deepak BoraNewbie

Asked: August 12, 2020In: CBSE

A tent is made in the form of a frustum of a cone surmounted by another cone. The diameters of the base and the top of the frustum are 20 m and 6 m, respectively, and the height is 24 m. If the height of the tent is 28 m and the radius of the conical part is equal to the radius of the top of the frustum, find the quantity of canvas required.

This problem is the combination of two CONE shape. To find answer of this question we need to use volume ...Read more

Deepak BoraNewbie

Asked: July 27, 2020In: CBSE

Write the coefficients of x^2 in each of the following: (i) (π*x^2)/2+x (ii) √2x-1

Chapter 2:- Polynomials CBSE maths Class 9th Exercise 2.1 Question 2:-Write the coefficients of x^2 in each of the following: (iii) (π*x<sup>2</sup>) /2 +x (iv) ...Read more

Deepak BoraNewbie

Asked: August 9, 2020In: CBSE

A solid right circular cone of height 60 cm and radius 30 cm is dropped in a right circular cylinder full of water, of height 180 cm and radius 60 cm. Find the volume of water left in the cylinder, in cubic meters.

This is one of the important question from the cbse board exam point of view because in 2015 cbse board ...Read more

Deepak BoraNewbie

Asked: August 12, 2020In: CBSE

The radii of the circular ends of a solid frustum of a cone are 33 cm and 27 cm, and its slant height is 10 cm. Find its capacity and total surface area.

In this problem use π = 22/7 Problem from RS Aggarwal book, problem number 6, page number 823, exercise 17C, ...Read more

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Marbles of diameter 1.4 cm are dropped into a cylindrical beaker of diameter 7 cm, containing some water. Find the number of marbles that should be dropped into the beaker so that the water level rises by 5.6 cm.

In a flower bed, there are 43 rose plants in the first row, 41 in the second 39 in the third, and so on. There are 11 rose plants in the last row. How many rows are there in the flower bed?

The inner diameter of a glass is 7 cm and it has a raised portion in the bottom in the shape of a hemisphere, as shown in the figure. If the height of the glass is 16 cm, find the apparent capacity and the actual capacity of the glass

Write the coefficients of x^2 in each of the following: (i) (π*x^2)/2+x (ii) √2x-1

A solid right circular cone of height 60 cm and radius 30 cm is dropped in a right circular cylinder full of water, of height 180 cm and radius 60 cm. Find the volume of water left in the cylinder, in cubic meters.

The radii of the circular ends of a solid frustum of a cone are 33 cm and 27 cm, and its slant height is 10 cm. Find its capacity and total surface area.