Question 1174985
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Unfortunately, there isn't enough information to solve this problem.


Here's a table of possible values we could have
<table border = "1" cellpadding = "5"><tr><td>Joan’s Age Now</td><td>Sister’s Age Now</td><td>Joan’s Age 6 Years Ago</td></tr><tr><td>8</td><td>4</td><td>2</td></tr><tr><td>10</td><td>5</td><td>4</td></tr><tr><td>12</td><td>6</td><td>6</td></tr><tr><td>14</td><td>7</td><td>8</td></tr><tr><td>16</td><td>8</td><td>10</td></tr><tr><td>18</td><td>9</td><td>12</td></tr><tr><td>20</td><td>10</td><td>14</td></tr><tr><td>22</td><td>11</td><td>16</td></tr><tr><td>24</td><td>12</td><td>18</td></tr><tr><td>26</td><td>13</td><td>20</td></tr><tr><td>28</td><td>14</td><td>22</td></tr><tr><td>30</td><td>15</td><td>24</td></tr></table>
Please double-check the problem to see if there is any other information, or ask your teacher for clarification.
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