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P, Q, R, S, and T reside in a 5-storeyed (Ground + 4) building, and each of them resides on a separate floor. To know who resides on the ground floor, which of the given statements are sufficient/insufficient

P, Q, R, S, and T reside in a 5-storeyed (Ground + 4) building, and each of them resides on a separate floor. To know who resides on the ground floor, which of the given statements are sufficient/insufficient?

(a)

1 and 3 are sufficient

(b)

2 and 3 are sufficient

(c)

1, 2 and 3 are sufficient

(d)

1, 2 and 3 are insufficient

Answer:

(a)

Explanation

Statements 1 and 3 are sufficient to determine the ground floor resident.