Girl students constitute 10 % of I year and 5 % of II year at Roorkee University. During summer holidays 70 % of the I year and 30 % of II year students are given a project. The girls take turns on duty in canteen. The chance that I year gi

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Girl students constitute 10 % of I year and 5 % of II year at Roorkee University. During summer holidays 70 % of the I year and 30 % of II year students are given a project. The girls take turns on duty in canteen. The chance that I year girl student is on duty in a randomly selected day is

Quantrex Academy · Accepted Answer

Correct answer: B. 14 17

The desired probability = 10 100 70 100 10 100 70 100 + 5 100 30 100 = 14 17

Girl students constitute 10 % of I year and 5 % of II year at Roorkee University. During summer holidays 70 % of the I year and 30 % of II year students are given a project. The girls take turns on duty in canteen. The chance that I year girl student is on duty in a randomly selected day is

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