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Three Dimensional Geometry
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Matrices and Determinants
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Trigonometry
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Calculus
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Area Under The Curves
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Coordinate Geometry
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1
VITEEE 2021
MCQ (Single Correct Answer)
+1
-0

Five persons entered the lift cabin on the ground floor of an eight floor house. Suppose that each of them independently and with equal probability can leave the cabin at any floor beginning with the first, then the probability of all 5 persons leaving at different floors is

A
$$\frac{{ }^7 P_5}{7^5}$$
B
$$\frac{7^5}{{ }^7 P_5}$$
C
$$\frac{6}{{ }^6 P_5}$$
D
$$\frac{{ }^5 P_5}{5^5}$$
Questions Asked from MCQ (Single Correct Answer)
VITEEE Subjects
Aptitude
English