# Three friends check into a hotel - visual puzzle and solution | SwaVid Learning Journal

Three friends check into a hotel.
The room is ₹300, so they pay ₹100 each.
Later the manager realises the room is only ₹250 and sends the bellboy back with

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# Three friends check into a hotel

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Three friends check into a hotel.
The room is ₹300, so they pay ₹100 each.
Later the manager realises the room is only ₹250 and sends the bellboy back with ₹50.
The bellboy keeps ₹20 and returns ₹10 to each friend. So each friend paid ₹90. That's ₹270.
Plus the bellboy's ₹20 = ₹290.
Where did the missing ₹10 go?

From reading to doing

If a chapter keeps feeling harder than it should, the cause is usually an earlier idea that never fully settled. Two quick ways to see it clearly:

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Look at the number pyramid in the image. Which number replaces the question mark?

Hint: It is not as random as it looks. There is a pattern in the way the numbers are built.

A shopkeeper sells two shirts for ₹600 each.
On one he makes a 20% profit. On the other he takes a 20% loss.
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