Exercise

Author:NCERT

NCERT Mathematics Solutions for Exercise

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

Questions from Exercise with Hints & Solutions

MEDIUM
10th CBSE
IMPORTANT

Draw the graph of the polynomial px=x2-2x-8.

MEDIUM
10th CBSE
IMPORTANT

Graph of polynomial fx=x3 will intersect x-axis at how many points?

MEDIUM
10th CBSE
IMPORTANT

The graph of polynomial px passes through the points -5, 0, 0, -40, 8, 0 and 5, -30. Which among the following is a factor of px?

HARD
10th CBSE
IMPORTANT

Factorise :- 2x²-5xy-3y²+3x+19y-20

HARD
10th CBSE
IMPORTANT

A polynomial is divided by x-1. The quotient obtained is 3x3-x2-x-4 , and the remainder is -5. Which polynomial meets these conditions?

EASY
10th CBSE
IMPORTANT

Shown below is a house of cards, a structure created by stacking playing cards on top of each other in the shape of pyramid. Each small triangle is made of 3 cards and each layer has 1 less triangle than the layer below it.

Question Image

Ankit and his friends were having a sleepover and wanted to do something fun. One of the friends suggested they could make a house of cards.

Ankit and his friends want to use 3 cards in the top layer and 18 in the bottom layer.

Form an AP showing the number of cards in each layer starting from the top layer.

EASY
10th CBSE
IMPORTANT

Shown below is a house of cards, a structure created by stacking playing cards on top of each other in the shape of pyramid. Each small triangle is made of 3 cards and each layer has 1 less triangle than the layer below it.

Question Image

Ankit and his friends were having a sleepover and wanted to do something fun. One of the friends suggested they could make a house of cards.

Ankit is planning to make a pyramid with the top and bottom layer containing 15 and 138 cards respectively.

How many layers will such a pyramid have? Show your work.