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| Question 1 | |
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| Which one of the following statements is correct? | |
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| A. | The H.C.F of given numbers cannot be equal to any of the numbers. | B. | The H.C.F can be greater than any of the numbers. | |
| C. | The H.C.F cannot be smaller than any of the numbers. | D. | The H.C.F cannot be greater than any of the numbers. | |
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| Question 2 | |
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| What is the CORRECT definition of Highest Common Factor (H.C.F) or the Greatest Common Divisor (G.C.D)? | |
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| A. | The lowest number that divides two or more numbers with remainder. | B. | The greatest number that divides two or more numbers without remainder. | |
| C. | The greatest number that divides at least one of the numbers without remainder. | D. | The smallest number that divides two or more numbers without a remainder. | |
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| Question 3 | |
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| Find the highest common factor of 100 and 85. | |
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| A. | 7 | B. | 4 | |
| C. | 2 | D. | 5 | |
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| Question 4 | |
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| What is the HCF of 12 and 23? | |
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| A. | 6 | B. | 3 | |
| C. | 1 | D. | 4 | |
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| Question 5 | |
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| Find the largest number that divides 245 and 1029, leaving remainder 5 in each case. | |
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| A. | 20 | B. | 10 | |
| C. | 16 | D. | 36 | |
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| Question 6 | |
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| The length, width and height of a room are 1020 cm, 820 cm and 620 cm, respectively.
What is the maximum length of a tape that can measure these dimensions exactly?
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| A. | 10cm | B. | 15cm | |
| C. | 40cm | D. | 20cm | |
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| Question 7 | |
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| What is the largest number that can divide 40, 67 and 107, leaving remainders 1, 2 and 3 respectively? | |
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| A. | 7 | B. | 3 | |
| C. | 12 | D. | 13 | |
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| Question 8 | |
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| Find the HCF of the following set of numbers.
140, 196, 260 | |
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| A. | 2 | B. | 4 | |
| C. | 1 | D. | 12 | |
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| Question 9 | |
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| Find the greatest number that divides 258 and 323, leaving remainders 2 and 3 respectively. | |
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| A. | 16 | B. | 32 | |
| C. | 64 | D. | 24 | |
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| Question 10 | |
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| H.C.F of two numbers is 1. What are those numbers called? | |
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| A. | Co-Primes | B. | Composite numbers | |
| C. | Twin Primes | D. | Prime numbers | |
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