Mock Test -9

1. Which of the following expressions is not a polynomial ?\[A)\: x^{2}-\frac{3}{x}+7\\B)\: 5x^{2}-10x-5\\C)\: -\frac{10}{3}x^{3}-5x\\D)\: \sqrt{3x^{5}}-\frac{7}{2}x-\frac{3}{2}\]

1.A
2. B
3. C
4. D

Explanation:

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2. The sides of a right angled triangle forming the right angle are 5 cm and 12 cm. Find the radius of the circumcircle of the triangle

1. 6.5 cm
2. 3.5 cm
3. 13 cm
4. 6 cm

Explanation:

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3. The diameter of the wheel of a tractor is 2.1 cm. If the wheel completes 250 rotations, find the total distance covered by the wheel ?( No Answer)

1. 1.75 km
2. 1.60 km
3. 1.55 km
4. 1.65 km

Explanation:

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4. Sheetal has same number of coins and notes of Rs. 5 and Rs. 20 respectively. Total amount she has is Rs. 600. Find the number of 20 rupee notes Sheetal has.

1. 48
2. 24
3. 60
4. 72

Explanation:

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5. Find the sum of additive inverse of (5m + 7n) and additive inverse of (-2m – 3n).

1. 3m + 4n
2. – 3m – 4n
3. 7m – 4n
4. - 7m + 4n

Explanation:

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6. Which of the following options is correct ?

1. \[\frac{-2}{3}> \frac{-1}{2}\]
2. \[\frac{-2}{3}> \frac{1}{2}\]
3. \[\frac{-5}{4}> \frac{-2}{3}\]
4. \[\frac{5}{4}> \frac{-2}{3}\]

Explanation:

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7. The measures of two angles having common vertex are 35° and 55o. Then find the correct statement from the following :

1. The angles are complementary to each other
2. The two angles are adjacent angles
3. The angles are vertically opposite to each other
4. The angles are supplementary

Explanation:

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Instructions for Q. Nos. 8 and 9 : In a city a survey was conducted to find how many children were given ‘Polio dose'. For this purpose children staying in different 'wards' were considered. The data collected is represented in the following sub-divided bar graph. Observe the bar-graph carefully and answer the following questions.

8. How many children did not get Polio dose ?

1. 200
2. 80
3. 70
4. 180

Explanation:

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9. What will be the ratio of the children who have taken ‘Polio dose' and staying in 'ward' A to that of the children from ward 'D' ?

1.6:5
2. 5:2
3.2:5
4. 5:6

Explanation:

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10. By how much is the average of the natural numbers from 1 to 50 more than the average of the natural numbers from 1 to 25 ?

1. 25.5
2. 12.5
3. 13
4. 22.5

Explanation:

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