A student finds the average of 10, 2- digit numbers. If the digits of one of the numbers is interchanged, the average increases by 4.5. The difference between the digits of 2-digit number is |
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a) |
6 |
b) |
5 |
c) |
4 |
d) |
3 |

A student finds the average of 10, 2- digit numbers. If the digits of one of the numbers is interchanged, the average increases by 4.5. The difference between the digits of 2-digit number is |
|||||||

a) |
6 |
b) |
5 |
c) |
4 |
d) |
3 |

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