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Maths Puzzle
HOW MANY NO. BETWEEN 200 AND 400 ARE DIVISIBLE BY 3,5,6 ?
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Three Ladies went to a hotel to share a room.
The clerk asked for $300.
Each Lady paid $100, making up the $300.
The hotel keeper then decided to allow a discount for the day, charging only $250 for the room.
He told the clerk to return $50 to the three Ladies.
The clerk pocketed $20 for himself. He gave the remaining $30 back to the three Ladies.
Each Lady took back $10. Therefore, each Lady paid 100 - 10 = $90 to the hotel.
$90 x 3 = $270 + the clerk's $20 = $290.
Question:Where has the remaining $10 gone?
Ramesh can finish a piece of work in 10 days. Rohan is twice as efficient as Ramesh.If they work together how many days will they need to finish the same amount of work?