NCERT Solutions · Class 11

NCERT Solutions for Class 11 Maths Chapter 6 Linear Inequalities — Exercise 6.20

Step-by-step NCERT Solutions for Class 11 Maths Chapter 6 (Linear Inequalities), Exercise 6.20. 14 questions with answers — read online free on NCERT Help.

Maths Chapter 6 Exercise 6.20 14 questions
ClassClass 11
SubjectMaths
ChapterChapter 6 — Linear Inequalities
ExerciseExercise 6.20
Questions solved14

Exercises in this chapter

Questions & step-by-step answers

Solve the inequalities in Exercises 1 to 6

Question 1:2 ≤ 3x – 4 ≤ 5

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Question 2:6 ≤ – 3 (2x – 4) < 12

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Question 3:7 3 4 18 2 x – ≤ − ≤

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Question 4:3 2 15 0 5 ( x− ) − < ≤

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Question 5:3 12 4 2 5 x − < − ≤ −

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Question 6:3 11 7 11 2 ( x + ) ≤ ≤ . Solve the inequalities in Exercises 7 to 10 and represent the solution graphically on number line.

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Question 7:5x + 1 > – 24, 5x – 1 < 24

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Question 8:2 (x – 1) < x + 5, 3 (x + 2) > 2 – x

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Question 9:3x – 7 > 2 (x – 6) , 6 – x > 11 – 2x

Solve the inequalities in Exercises 1 to 6.1. 2 3

Question 10:5 (2x – 7) – 3 (2x + 3) ≤ 0 , 2x + 19 ≤ 6x + 47 .

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Question 11:A solution is to be kept between 68° F and 77° F. What is the range in temperature in degree Celsius (C) if the Celsius / Fahrenheit (F) conversion formula is given by F = 9 5 C + 32 ?

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Question 12:A solution of 8% boric acid is to be diluted by adding a 2% boric acid solution to it. The resulting mixture is to be more than 4% but less than 6% boric acid. If we have 640 litres of the 8% solution, how many litres of the 2% solution will have to be added?

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Question 13:How many litres of water will have to be added to 1125 litres of the 45% solution of acid so that the resulting mixture will contain more than 25% but less than 30% acid content?

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Question 14:IQ of a person is given by the formula IQ = MA CA × 100,

About this exercise

NCERT Solutions for Class 11 Chapter 6 ExMiscellaneous Linear Inequalities

Frequently asked questions

Where can I read NCERT Solutions for Class 11 Maths Exercise 6.20?

You can read step-by-step NCERT Solutions for Class 11 Maths Chapter 6 Exercise 6.20 online on NCERT Help at this page — no download required.

How many questions are solved in Exercise 6.20?

This page includes 14 NCERT textbook questions with detailed answers.

What are the other exercises in this chapter?

Browse all exercises for Class 11 Maths Chapter 6 using the exercise switcher on this page or the full chapter list on the subject hub.