NSTSE (National Science Talent Search Exam- Unified Council) Class 9: Questions 419 - 424 of 2000

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Question number: 419

» Mathematics » Probability

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Question

The probability that in a family of 2 children, there will be at least one girl is

Choices

Choice (4)Response

a.

b.

c.

d.

1

Question number: 420

» Biology » Fundamentals Unit of Life

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Question

Basic difference between active & passive transport is

Choices

Choice (4)Response

a.

Active transport does not require energy and movement of solutes is against the concentration gradient.

b.

Active transport requires energy with the movement of solutes against the concentration gradient.

c.

Active transport requires energy with the movement of solutes along the concentration gradient.

d.

All of the above

Question number: 421

» Mathematics » Linear Equations in Two Variables

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Question

If and is the solution of the equation , then the value of ‘k’ is ________.

Choices

Choice (4)Response

a.

18

b.

-6

c.

-19

d.

-21

Question number: 422

» Biology » Fundamentals Unit of Life

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Question

Transcription results in

Choices

Choice (4)Response

a.

Synthesis of DNA from RNA

b.

Synthesis of DNA from DNA

c.

Synthesis of Protein from DNA

d.

Synthesis of RNA from DNA

Question number: 423

» Mathematics » Constructions

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Question

Two sides of a triangle are 6 and 9 units. Which of the following length can be the length of the third side?

Choices

Choice (4)Response

a.

15 cm

b.

17 cm

c.

2 cm

d.

11 cm

Question number: 424

» Mathematics » Heron's Formula

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Question

The area of a parallelogram whose diagonal is 13.6 cm and the perpendicular distance of this diagonal from an opposite vertex is 15 cm is

Choices

Choice (4)Response

a.

b.

c.

d.

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