The total age of all the guests in the party was 540 years. If a South Indian couple (guests) left the party, then the average of the remaining guests still remained unchanged, where the age of both the husband and wife (the South Indian couple) was same, then the average age of this couple and the total number of guests in the party, respectively, can be :

18, 27

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20, 27

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15, 38

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Can't be determined

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Solution

The correct option is B 20, 27
Solve through option $\frac{540}{27} = 20$
$\frac{540 - (2 \times 20)}{25} = \frac{500}{25} = 20$
Hence option (b) is correct

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The correct option is B 20, 27Solve through option 54027=20 540−(2×20)25=50025=20 Hence option (b) is correct

The correct option is B 20, 27
Solve through option $\frac{540}{27} = 20$
$\frac{540 - (2 \times 20)}{25} = \frac{500}{25} = 20$
Hence option (b) is correct