Mathematical Content-Number System and Arithmetic [CTET (Central Teacher Eligibility Test) Paper-II Mathematics]: Questions 1 - 7 of 244

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Question 1

Question MCQ▾

We call a number perfect if it is the sum of all its positive divisors, except itself. So, as per formula of perfect number n = , where p is a prime number, then which of the following is a perfect number if p = 5.

Choices

Choice (4)Response

a.

8128

b.

498

c.

28

d.

496

Edit

Question 2

Question MCQ▾

If 770707 = where x, y and z are whole numbers, then the value of is.

Choices

Choice (4)Response

a.

7

b.

9

c.

11

d.

8

Edit

Question 3

Question MCQ▾

The value of is.

Choices

Choice (4)Response

a.

22

b.

38

c.

24

d.

25

Edit

Question 4

Question MCQ▾

The product of two whole numbers is 81. The highest possible sum of these numbers is

Choices

Choice (4)Response

a.

83

b.

30

c.

82

d.

18

Edit

Question 5

Appeared in Year: 2014

Question MCQ▾

The product of two whole numbers is 24. The smallest possible sum of these numbers is (February)

Choices

Choice (4)Response

a.

10

b.

9

c.

8

d.

12

Edit

Question 6

Appeared in Year: 2014

Question MCQ▾

A fraction is equivalent to . Its denominator and numerator add up to 91. What is the difference between the denominator and numerator of this fraction? (February)

Choices

Choice (4)Response

a.

13

b.

19

c.

3

d.

21

Edit

Question 7

Appeared in Year: 2014

Question MCQ▾

We call a number perfect if it is the sum of all its positive divisors, except itself. For example, 28 is a perfect number because Which of the following number is a perfect number? (February)

Choices

Choice (4)Response

a.

6

b.

13

c.

9

d.

10

Edit