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Question


After the withdrawal of bugs, as indicated in the previous question, some new bugs are discovered. Each of them belongs to only one solution in a manner such that the number of bugs found in each of the three solutions become identical.So, the minimum number of bugs which were discovered is equal to:


Options:
A .   3
B .   6
C .   9
D .   None of these
Answer: Option A
:
A
The number of bugs involved in the three solutions, after withdrawal are 20, 19 and 21. These numbers being consecutive can be made equal by adding a minimum of 3 new bugs.

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