1. | The product of two numbers is 2028 and their H.C.F. is 13. The number of such pairs is: |
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Answer: Option B Explanation: Let the numbers 13 Then, 13 Now, the co-primes with product 12 are (1, 12) and (3, 4). [Note: Two integers So, the required numbers are (13 x 1, 13 x 12) and (13 x 3, 13 x 4). Clearly, there are 2 such pairs. |

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