Mathematics [NSTSE (National Science Talent Search Exam- Unified Council) Class 8]: Questions 1093 - 1101 of 1201

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Question 1093

Edit

Question

MCQ▾

What must be added to to get ?

Choices

Choice (4)Response

a.

b.

c.

d.

None of the above

Question 1094

Edit

Question

MCQ▾

The difference of the degrees of the polynomials and is:

Choices

Choice (4)Response

a.

2

b.

3

c.

4

d.

1

Question 1095

Edit

Question

MCQ▾

A man completes of a job in 12 days. At this rate, how many more days will it takes him to finish the job?

Choices

Choice (4)Response

a.

13

b.

8

c.

18

d.

10

Question 1096

Edit

Question

MCQ▾

The value of is:

Choices

Choice (4)Response

a.

b.

49

c.

d.

-49

Question 1097

Edit

Question

MCQ▾

The average age of three boys is 30 years and their ages are in the ratio 2: 5: 8. The age of the youngest boy is:

Choices

Choice (4)Response

a.

48 years

b.

30 years

c.

12 years

d.

15 years

Question 1098

Mathematics
Edit

Question

MCQ▾

What change in percent is made in the area of a rectangle by decreasing its length and increasing its breadth by 8%?

Choices

Choice (4)Response

a.

0.08 % increase

b.

1.64 % decrease

c.

0.64 % increase

d.

0.64 % decrease

Question 1099

Edit

Question

MCQ▾

The value of is

Choices

Choice (4)Response

a.

b.

-729

c.

81

d.

Question 1100

Edit

Question

MCQ▾

The product of and is equal to the quotient obtained when is divided by ________.

Choices

Choice (4)Response

a.

0

b.

x

c.

d.

1

Question 1101

Mathematics
Edit

Question

MCQ▾

The table shows the distribution of marks in Computer test. Grade B is given to marks ranging from 31 to 45. Calculate the percentage of pupils who obtained a grade B.

Table of number of pupils and obtained marks in computer

Marks

Frequency

31 - 35

3

36 - 40

7

41 - 45

12

46 - 50

9

51 - 55

6

56 - 60

3

Choices

Choice (4)Response

a.

26%

b.

55%

c.

65%

d.

75%