Galvatron
Spock and Galvatron < one and the same
Three men went to a hotel to share a room for a week.
The clerk asked for £300.
Each man paid £100, making up the £300.
The hotel keeper then decided to allow a discount for the Week, charging only £250 for the room.
He told the clerk to return £50 to the three men.
The clerk pocketed £20 for himself. He gave the remaining £30 back to the three men.
Each man took back £10. Therefore, each man paid 100 - 10 =£90 to the hotel.
£90 x 3 = £270 + the clerk's £20 = £290.
Question: Where has the remaining £10 gone?

The clerk asked for £300.
Each man paid £100, making up the £300.
The hotel keeper then decided to allow a discount for the Week, charging only £250 for the room.
He told the clerk to return £50 to the three men.
The clerk pocketed £20 for himself. He gave the remaining £30 back to the three men.
Each man took back £10. Therefore, each man paid 100 - 10 =£90 to the hotel.
£90 x 3 = £270 + the clerk's £20 = £290.
Question: Where has the remaining £10 gone?
