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All proofs are identity (A) + None of the identity are card (E) → No proof is a card (E) → Conversion → No card is a proof (E) → Conversion → Some proofs are not card (O). Hence conclusion I follows. All valid are proof (A) + All proofs are identity (A) → All valid are identity (A). Hence conclusion II does not follow.
Find the angle between the hour and minute hand of the clock when the time is 3:25 AM?
If Valentine’s day (14th February 2017) was Sunday, then, find in which forthcoming year we would celebrate the Valentine’s day on Sunda...
What is the reflex angle between the hands of a clock at 15 minutes past 5?
If December 25th, which is Christmas Day, falls on a Tuesday, what day of the week will it be after five days?
In a clock, the time is 12:00 pm. If the minute hand is pointing toward the South, where is the hour hand pointing?
At what time between 5 AM and 6 AM will the hour and minutes hands of a clock coincide with each other?