Exercise

Author:NCERT

NCERT Mathematics Solutions for Exercise

Simple step-by-step solutions to Exercise questions of Polynomials from Mathematics Textbook of Competency Based Questions for Class IX. Also get 3D topic explainers, cheat sheets, and unlimited doubts solving on EMBIBE.

Questions from Exercise with Hints & Solutions

MEDIUM
9th CBSE
IMPORTANT

A shipment service provider uses three types of containers for shipping materials. The height and width of the three containers are the same. The containers’ height is 0.15 m more than their width, and the volume of the smallest container is 625 m3.

Question Image

Write a polynomial relating Container 1’s length, breadth and height with its volume.

HARD
9th CBSE
IMPORTANT

A shipment service provider uses three types of containers for shipping materials. The height and width of the three containers are the same. The containers’ height is 0.15 m more than their width, and the volume of the smallest container is 652 m3

Question Image

Which of the following statement is true?

HARD
9th CBSE
IMPORTANT

A shipment service provider uses three types of containers for shipping materials. The height and width of the three containers are the same. The containers’ height is 0.15 m more than their width, and the volume of the smallest container is 652 m3

Question Image

What is the height of each container.

HARD
9th CBSE
IMPORTANT

Hard plastic square shaped sheets are available.The side length of sheets is as per the requirement. The price of a sheet is z per square meter. Anuj requires two sheets- a smaller sheet with the side length x m and a larger sheet with side length y m. He has two choices:

Choice 1: buy two separate sheets of side lengths x m and y m

Choice 2: buy a single sheet with side length x+y m

What is the difference in price between the two choices?

HARD
9th CBSE
IMPORTANT

A polynomial is expressed as: px=x3+x2-x-1. At what values of x is the polynomial px=0

HARD
9th CBSE
IMPORTANT

If 3x-y5=10 and xy=5, then 27x3-y3125=

MEDIUM
9th CBSE
IMPORTANT

If x=9+77, then the value of 111x+2x2 is equal to 

HARD
9th CBSE
IMPORTANT

Solve for real numbers the equation:

x1-1+2x2-4+3x3-9+......+nxn-n2=12x1+x2+......+xn