NIMCET 2008 Question Paper with solutions

Question : 41 of 120

Marks: +1, -0

You are given two (unmarked) containers of capacity 9 and 4 L and a huge tank of water. Need is to get a measure of exactly 6 L of water. A move is either filling a container completely or emptying a container (either fully or partially). The smallest number of moves needed to do this task is

8
10
12
None of these

Validate

Solution:

Step 1 Fill

9 {L}

container.
Step 2 Pour

4 {L}

water from

9 {L}

container to

4 {L}

container
Step 3 Empty

4 {L}

container.
Step 4 Again pour

4 {L}

water from

9 {L}

container to

4 {L}

container.
Step 5 Again empty

4 {L}

container
Step 6 Now pour remaining

1 {L}

water from

9 {L}

container to 4 L container.
Step 7 Fill

9 {L}

container.
Step 8 Pour water from

9 {L}

container to

4 {L}

container, so that it is completely full.
Now, 9 L container contains

6 {L}

water.

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