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

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11th Math: Linear Inequalities

1 / 10

1. What are the pairs of consecutive odd integers greater than 10 that add up to less than 40?

(11, 13)

(11, 13), (13, 15), (15, 17), (17, 19)

(13, 15), (15, 17)

None

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2 / 10

2. The length of a rectangle is 3times the breadth. If the minimum perimeter of the rectangle is 160 cm, then

length < 20 cm

breadth > 20 cm

length ≤ 20 cm

breadth x ≥ 20 cm

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3 / 10

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

[2,3]

[1,9]

[4,0]

None

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4 / 10

4. 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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5 / 10

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

x > 1

x > – 2

x < 1

None

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6 / 10

6. 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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7 / 10

7. 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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8 / 10

8. Solve – 8 ≤ 5x – 3 < 7.

–1 > x > 2

–1 ≤ x < 2

None

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9 / 10

9. 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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10 / 10

10. 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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