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प्रश्न
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 consecutive day.
बेरीज
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उत्तर
Total number of possible outcomes = 5 × 5 = 25
The possible outcomes are:
MM, MT, MW, MTh, MF, TM, TT, TW, TTh, TF, WM, WT, WW, WTh, WF, ThM, ThT, ThW, ThTh, ThF, FM, FT, FW, FTh, FF
Favorable outcomes for two employees remaining absent on consecutive days:
MT, TM, TW, WT, WTh, ThW, ThF, FTh
Number of favorable outcomes = 8
P(consecutive days) = `8/25`
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