Mathematics [NSTSE (National Science Talent Search Exam- Unified Council) Class 9]: Questions 839 - 845 of 989

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Question 839

Mathematics
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Question

MCQ▾

The mean of 551,553,555,557,559 and 561 is

Choices

Choice (4)Response

a.

553

b.

561

c.

559

d.

556

Question 840

Mathematics
Edit

Question

MCQ▾

The sum of the deviations of the variable values 5,9, 10,12,14 from 10 is

Choices

Choice (4)Response

a.

10

b.

1

c.

0

d.

All of the above

Question 841

Mathematics
Edit

Question

MCQ▾

When two dice are thrown, the probability of getting a number always greater than 3 on the second dice is

Choices

Choice (4)Response

a.

b.

c.

d.

None of the above

Question 842

Mathematics
Edit

Question

MCQ▾

The mean of 20 numbers is 40. If 2 is added to each of the first ten numbers, then the mean of the new set of 20 numbers is

Choices

Choice (4)Response

a.

41

b.

35.5

c.

21

d.

20.5

Question 843

Mathematics
Edit

Question

MCQ▾

The length of the hypotenuse of a right angled triangle whose two sides measure 8 cm and 0.15 m is

Choices

Choice (4)Response

a.

8.15 cm

b.

0.23 cm

c.

17 cm

d.

15 cm

Question 844

Mathematics
Edit

Question

MCQ▾

An isosceles triangle can be obtuse angled.

Choices

Choice (4)Response

a.

True

b.

Cannot be determined

c.

False

d.

None of the above

Question 845

Edit

Question

MCQ▾

A hemispherical bowl is made of steel of 0.2 cm thickness. The inner radius of the bowl is 15 cm. The volume of steel used is ________.

Choices

Choice (4)Response

a.

b.

c.

d.