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The question is based on the information provided below:

From a group of seven people – $\text{J, K, L, M, N, P}$ and $\text{Q}$ – exactly four will be selected to attend a diplomat’s retirement dinner. Selection must conform the following conditions:

1. Either $\text{J}$ or $\text{K}$ must be selected, but $\text{J}$ and $\text{K}$ cannot both be selected
2. Either $\text{N}$ or $\text{P}$ must be selected, but $\text{N}$ and $\text{P}$ cannot both be selected
3. $\text{N}$ cannot be selected unless $\text{L}$ is selected
4. $\text{Q}$ cannot be selected unless $\text{K}$ is selected

There is only one acceptable group of four that can be selected to attend the retirement dinner if which one of the following pairs of people is selected?

1. $\text{K}$ and $\text{M}$
2. $\text{L}$ and $\text{N}$
3. $\text{L}$ and $\text{Q}$
4. $\text{M}$ and $\text{Q}$

M and Q
by
76 points

solution please
Answer:

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