Offices in Delhi Are Open for Five Days in a Week (Monday to Friday). Two Employees of an Office Remain Absent for One Day in the Same Particular Week. Find the Probability that - Mathematics

Sum

Offices in Delhi are open for five days in a week (Monday to Friday). Two employees of an office remain absent for one day in the same particular week. Find the probability that they remain absent on:

the same day

Solution

Total number of possible outcomes=5xx5=25

The possible outcomes are :

MM,MT,MW,MTh,MF,TM,TT,TW,TTh,TF,WM,WT,WW,WTh,WF,ThM,ThT,ThM,ThT,Thw,ThTh,THF,FM,FT,FW,FTh,FF

Favorable outcome for two employees remaining absennt on same day are: MM,TT,WW,ThTh,FF

Number of favorable outcome = 5

P(same day) = 5/25=1/5

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APPEARS IN

Selina Concise Maths Class 10 ICSE
Chapter 25 Probability
Exercise 25 (C) | Q 30.1 | Page 396