Mathematics-Multiples and Factors [NSTSE (National Science Talent Search Exam- Unified Council) Class 4]: Questions 48 - 57 of 99
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Question 48
Question 49
Question MCQ▾
The sum of least prime number and the least composite number is:
Choices
Choice (4) | Response | |
---|---|---|
a. | 9 | |
b. | 6 | |
c. | 3 | |
d. | 7 |
Question 50
Question MCQ▾
The number 36 has ________.
Choices
Choice (4) | Response | |
---|---|---|
a. | 5 factors | |
b. | 3 factors | |
c. | 7 factors | |
d. | 9 factors |
Question 51
Question 52
Question MCQ▾
What is the difference between the least common multiple and least common factor of the numbers 15 and 20 (except 1) ?
Choices
Choice (4) | Response | |
---|---|---|
a. | 45 | |
b. | 55 | |
c. | 40 | |
d. | 60 |
Question 53
Question 54
Question MCQ▾
________ should be added to 319 to make it divisible by 3.
Choices
Choice (4) | Response | |
---|---|---|
a. | 0 | |
b. | 2 | |
c. | 3 | |
d. | 1 |
Question 55
Question MCQ▾
A number which when divided by 2, leaves one as remainder, is ________ number.
Choices
Choice (4) | Response | |
---|---|---|
a. | Twin prime | |
b. | Prime | |
c. | Even | |
d. | Odd |
Question 56
Question MCQ▾
Write the least 2-digit number that has as factors?
Choices
Choice (4) | Response | |
---|---|---|
a. | 50 | |
b. | 34 | |
c. | 48 | |
d. | 56 |
Question 57
Question MCQ▾
Numbers which have only two factors are called ________ numbers.
Choices
Choice (4) | Response | |
---|---|---|
a. | Twin prime | |
b. | Composite | |
c. | Even | |
d. | Prime |