11th Math Linear Inequalities MCQ Chapter Quiz: Check knowledge with instant result

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Time: 10 Minutes for 10 Question.

11th Math: Linear Inequalities

1 / 10

1. The marks obtained by a Monika of Class XI in first and second terminal examination are 62 and 48, respectively. Find the minimum marks he should get in the annual examination to have an average of at least 60 marks.

x ≥ 50

x ≥ 70

x ≥ 90

None

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2. 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?

More than 562.5 litres but less than 600 litres.

More than 562.5 litres but less than 900 litres.

More than 462.5 litres but less than 900 litres.

None

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3. 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
$11th math quiz$

4°C

5°C

6°C

20°C

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4. Solve 4x + 3 < 6x +7.

x > 1

x > – 2

x < 1

None

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5. A solution of 8% boric acid is has diluted by adding a 2% boric acid solution to it. The resulting mixture is to be more than 4% but not 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?

More than 320 litres but less than 280 litres

More than 420 litres but less than 1280 litres

More than 320 litres but less than 1280 litres

None

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6. Solve the inequalities 2 ≤ 3x – 4 ≤ 5

[2,3]

[1,9]

[4,0]

None

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7. Observe the figure below and The interval at which the value of x lies is
$11th math quiz$

x ∈ (– ∞, – 2]

x ∈ (– ∞, – 2)

x ∈ (– 2, ∞]

x ∈ [– 2, ∞)

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8. Solve – 8 ≤ 5x – 3 < 7.

–1 > x > 2

–1 ≤ x < 2

None

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9. ABC Company has 600 litres of a 12% solution of acid. How many litres of a 30% acid solution must be added to it so that acid content in the resulting mixture will be more than 15% but less than 18%?

Less than 120 litres but more than 300 litres

More than 120 litres but less than 300 litres

More than 220 litres but less than 300 litres

None

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10. $11th math quiz$

x ≥ 6

x < 7

x ≥ 8

None

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