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 |
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 |
Question 3
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 |
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 |
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 |
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 |