NSTSE (National Science Talent Search Exam- Unified Council) Class 10: Questions 389 - 394 of 1484

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Question number: 389

» Mathematics » Arithmetic Progressions

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Question

A man saves Rs. 80 in a certain year and in each year thereafter he saves Rs. 20 more than the preceding year. In how many years will his total savings amount to Rs. 3,680?

Choices

Choice (4) Response

a.

15 years

b.

16 years

c.

27 years

d.

23 years

Question number: 390

» Mathematics » Surface Area and Volumes

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The diameter of a copper sphere is 6 cm. It is beaten and drawn into a wire of diameter 0.2 cm. The length of wire is ________.

Choices

Choice (4) Response

a.

3000 cm

b.

6000 cm

c.

1800 cm

d.

3600 cm

Question number: 391

» Mathematics » Trigonometry

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Question

= ________.

Choices

Choice (4) Response

a.

b.

c.

d.

Question does not provide sufficient data or is vague

Question number: 392

» Mathematics » Coordinate Geometry

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Question

If and are the midpoints of the sides of , the area of the triangle is ________.

Choices

Choice (4) Response

a.

55 sq units

b.

110 sq units

c.

12 sq units

d.

27.5 sq units

Question number: 393

» Mathematics » Polynomials

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Question

What should be subtracted from to get ?

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 394

» Mathematics » Polynomials

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MCQ▾

Question

Simplify .

Choices

Choice (4) Response

a.

b.

c.

d.

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