CBSE Class 11 Linear inequalities Worksheet D

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1.Solve 5x -3 ≤ 3x +1when x is an integer.

2. Solve 30x < 200 when x is a natural no.

3. Solve the inequality 

4. Solve graphically x - y ≤ 0

5. A man wants to cut three lengths from a single piece of board of length 91 cm. The second length is to be 3 cm longer than the shortest and the third length is to be twice as long as the shortest. What are the possible lengths of the shortest board if the third piece is to be at least 5 cm longer than the second.

6. The water acidity in a pool is considered normal when the average Ph reading of three daily measurements is between 7.2 and 7.8 If the first Ph reading are 7.48 and7.85, find the range of Ph value for the third reading that will result in the acidity level being normal.

7. How many litres of water will have to be added to 1125 litres of the 45% sol.Of acid so that the resulting mixture will contain more than 25%but less than 30% acid content. 

8. Solve graphically 3x + 2y £150 x + 4y £ 80 x £15 y ³ 0 x ³ 0

Click on link below to download CBSE Class 11 Linear inequalities Worksheet D.