Question How many speeches were delivered in the two days 39 programme Statements 18 speakers were i...........

Logical Reasoning(Master ) Data Sufficiency

Question: How many speeches were delivered in the two days' programme ?

Statements:

18 speakers were invited to give at least one speech (maximum of two speech), out of which one-sixth of the speakers could not come.

One-third of the speakers gave two speeches each.

I alone is sufficient while II alone is not sufficient

II alone is sufficient while I alone is not sufficient

Either I or II is sufficient

Both I and II are sufficient

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Explanation:

Answer: Option D
Explanation:
From I, we find that number of speakers who attended programme =18-(1/6) of 18 = 15.
From II, we find that one-third of 15 i.e. 5 speakers gave 2 speeches each, while each of the remaining 10 speakers delivered only one speech.
So, total number of speeches delivered = (5 x 2 + 10 x 1) = 20.