NSTSE (National Science Talent Search Exam- Unified Council) Class 10: Questions 409 - 414 of 1484

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Question number: 409

» Mathematics » Arithmetic Progressions

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MCQ▾

Question

The measures of the interior angles of a convex polygon are in AP. If the smallest angle is and the largest angle is , then the number of sides of the polygon is

Choices

Choice (4) Response

a.

4

b.

12

c.

6

d.

8

Question number: 410

» Mathematics » Surface Area and Volumes

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MCQ▾

Question

Ratio of volumes of two cones with same height is

Choices

Choice (4) Response

a.

b.

c.

d.

Question does not provide sufficient data or is vague

Question number: 411

» Mathematics » Quadratic Equations

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MCQ▾

Question

The equation has

Choices

Choice (4) Response

a.

A real root between 20 and 23

b.

An extraneous root between -10 and -5

c.

Two extraneous roots

d.

An extraneous root between -6 and -1

Question number: 412

» Mathematics » Surface Area and Volumes

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MCQ▾

Question

A cylindrical vessel of diameter 9 cm has some water in it. A cylindrical iron piece of diameter 6 cm and height 3 cm is dropped in it. After it was completely immersed, the raise in the level of water is ________.

Choices

Choice (4) Response

a.

4.21 cm

b.

2.66 cm

c.

1.33 cm

d.

2.28 cm

Question number: 413

» Mathematics » Surface Area and Volumes

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MCQ▾

Question

A vessel is in conical shape. If its volume is 16.632 liters and height is 9 cm, the cost of repairing its CSA at Rs. 3/sq m is

Choices

Choice (4) Response

a.

6.4

b.

5.1

c.

1.7

d.

3.4

Question number: 414

» Mathematics » Quadratic Equations

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MCQ▾

Question

If , then the value of x is

Choices

Choice (4) Response

a.

2 or 5

b.

1 or 5

c.

0 or -7

d.

0 or -9

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