worksheets - Indian Institute of Technology, Bombay
worksheets - Indian Institute of Technology, Bombay
worksheets - Indian Institute of Technology, Bombay
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Tejas and Jyoti discuss the problem and first list out the information, goal<br />
and conditions.<br />
I. Task: The farmer, fox, chicken, and corn have to cross the river.<br />
II. Identify:<br />
1. Goal- Farmer has to take the chicken, fox and the corn to the<br />
other side <strong>of</strong> the river in the boat.<br />
2. Information available-<br />
A river that can be crossed by boat.<br />
A farmer who owns a boat.<br />
The farmer has with him a fox, chicken and some corn.<br />
3. Conditions-<br />
The farmer can take only one item at a time in his boat<br />
(either the fox or the chicken or corn).<br />
On either side <strong>of</strong> the river the farmer cannot leave:<br />
Fox and chicken together.<br />
Chicken and corn together.<br />
III. Solve:<br />
(See the next box.)<br />
Tejas: Suppose the farmer takes the chicken first and leaves it on the<br />
other side.<br />
Moz: Why did you choose chicken first?<br />
Tejas: If we take the fox then chicken and corn will be left together. The<br />
chicken will eat the corn.<br />
Jyoti: The farmer cannot leave the fox and chicken together because the<br />
fox will eat the chicken.<br />
Moz: Good reasoning.<br />
fox and chicken together<br />
Chicken and corn together<br />
But he can leave fox and<br />
corn together<br />
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