Mathematics [NSTSE (National Science Talent Search Exam- Unified Council) Class 9]: Questions 466 - 471 of 989

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Question number: 466

Mathematics
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Question

MCQ▾

Which of the following alternatives is wrong? Given that

(I) Difference of two rational numbers is a rational number

(II) Subtraction is commutative on rational numbers

(III) Addition is not commutative on rational numbers

Choices

Choice (4)Response

a.

(I) and (III)

b.

(I) only

c.

(II) and (III)

d.

Question does not provide sufficient data or is vague

Question number: 467

Mathematics
Edit

Question

MCQ▾

In a if , , then perimeter of the triangle is

Choices

Choice (4)Response

a.

73 cm

b.

54 cm

c.

61 cm

d.

None of the above

Question number: 468

Mathematics
Edit

Question

MCQ▾

If a coin is tossed twice, the probability of getting at least one tail is

Choices

Choice (4)Response

a.

b.

c.

d.

Question does not provide sufficient data or is vague

Question number: 469

Mathematics
Edit

Question

MCQ▾

If is divided by 17 then the remainder is

Choices

Choice (4)Response

a.

-2

b.

-1

c.

0

d.

1

Question number: 470

Mathematics
Edit

Question

MCQ▾

The area of a triangle whose sides are 12,13 and 15 cm.

Choices

Choice (4)Response

a.

b.

c.

d.

Question number: 471

Edit

Question

MCQ▾

A cylindrical vessel of diameter 12 cm is partly filled with water. 120 lead balls are dropped in it. The raise in water level is 0.8 cm. The diameter of each ball is ________.

Choices

Choice (4)Response

a.

b.

c.

d.