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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. - Mathematics

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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. 

योग

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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अध्याय 25: Probability - Exercise 25 (C) [पृष्ठ ३९६]

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सेलिना Mathematics [English] Class 10 ICSE
अध्याय 25 Probability
Exercise 25 (C) | Q 30.2 | पृष्ठ ३९६

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