NSTSE (National Science Talent Search Exam- Unified Council) Class 9: Questions 744 - 750 of 2000

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Question number: 744

» Mathematics » Statistics

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Question

The mean of 7, x, 11, y and 21 is 14. Then

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Choice (4)Response

a.

b.

c.

d.

Question number: 745

» Mathematics » Number Systems

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Question

The greatest among is

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Choice (4)Response

a.

b.

c.

d.

Question does not provide sufficient data or is vague

Question number: 746

» Mathematics » Probability

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Question

A book containing 400 pages is opened at random. The probability that a triplet page is found is

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Choice (4)Response

a.

b.

c.

d.

Question does not provide sufficient data or is vague

Question number: 747

» Mathematics » Surface Areas & Volumes

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Question

A cylindrical vessel of diameter 16 cm is partly filled with water. 180 lead balls are dropped in it. The raise in water level is 1.4 cm. The diameter of each ball is ________.

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Choice (4)Response

a.

b.

c.

d.

Question number: 748

» Mathematics » Number Systems

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MCQ▾

Question

Which of the following statements is correct?

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Choice (4)Response

a.

0 is called the additive identity for rational number

b.

1 is called the multiplicative identity for rational number

c.

The additive inverse of 0 is zero itself

d.

All a. , b. and c. are correct

Question number: 749

» Mathematics » Number Systems

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Question

The sum of the additive inverse and multiplicative inverse of 5 is:

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Choice (4)Response

a.

b.

c.

d.

Question number: 750

» Mathematics » Heron's Formula

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Question

The adjacent sides of a parallelogram are 26 cm and 32 cm. The ratio of its altitudes is

Choices

Choice (4)Response

a.

8: 13

b.

13: 16

c.

4: 13

d.

26: 16

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