Seven people, Rhea, Sahil, Tara, Uday, Vani, Wasim and Yash, live on the seven floors of a building, one per floor (the ground floor is the lowest). Vani lives on the top floor. Tara lives on the fourth floor from the bottom. Sahil lives immediately below Vani. Exactly two floors lie between Rhea's and Yash's floors, Yash being higher. Wasim lives immediately above Rhea. How many people live between Rhea and Vani?

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Accepted Answer

Four. Vani is on floor 7 and Sahil on 6, Tara on 4. Rhea/Yash can be 1/4, 2/5 or 3/6; floors 4 and 6 are taken, so Rhea is on 2 and Yash on 5. Wasim is on 3 and Uday on 1. Order from the bottom: Uday, Rhea, Wasim, Tara, Yash, Sahil, Vani. Between Rhea (2) and Vani (7) live Wasim, Tara, Yash and Sahil: four people.

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