Q:
Two cogged wheels of which one has 32 cogs and other 54 cogs, work into each other. If the latter turns 80 times in three quarters of a minute, how often does the other turn in 8 seconds?
Answer & Explanation
Answer: B) 24
Explanation: Less Cogs
more turns and less time
less turns
Number of turns required=80 × 54/32 × 8/45 = 24 times
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