Question
The names of 6 students from section A, 8 students from
section B and 10 students from section C were selected. The age of all the 24 students was different. Again, one name was selected from them and it was found that it was of section B. What was the probability that it was the youngest student of the section B?Solution
The total number of students = 24 When 1 name was selected from 24 names, the probability that he was of section B = 8/24 = 1/3 But from the question, there are 8 students from the section B and the age of all 8 are different therefore, the probability of selecting one i.e. youngest student from 8 students will be 1/8
'рдЦрд╛рдирдкрд╛рди' рдореЗрдВ рдХреМрди рд╕рд╛ рд╕рдорд╛рд╕ рд╣реИ?
тАШVISAтАЩ рдХреЗ рд▓рд┐рдП рд╣рд┐рдиреНрджреА рдкрд╛рд░рд┐рднрд╛рд╖рд┐рдХ рд╢рдмреНрдж рд╣реИ
Accrue рдХреЗ рд▓рд┐рдП рд╕рд╣реА рдкрд╛рд░рд┐рднрд╛рд╖рд┐рдХ рд╢рдмреНрдж рд╣реИ ?
"рд╢реНрдпрд╛рдо рдШрд░ рдЖрдирд╛ рдЪрд╛рд╣рддрд╛ рд╣реИ" рд╡рд╛рдХреНрдп рдореЗрдВ рдХреМрди-рд╕реА рдХреНрд░рд┐рдпрд╛ рд╣реИ?
рдирд┐рдореНрдирд▓рд┐рдЦрд┐рдд рдореЗрдВ рд╕реЗ рддрджреНрднрд╡ рд╢рдмреНрдж рдХреНрдпрд╛ рд╣реИ ?
тАШ рдпрд╣ ' рд╕рд░реНрд╡рдирд╛рдо рдХрд╛ рдЧреБрдгрд╡рд╛рдЪрдХ рд╡рд┐рд╢реЗрд╖рдг рдХреНрдпрд╛ рд╣реЛрдЧрд╛ ?
рдирд┐рдореНрдирд▓рд┐рдЦрд┐рдд рдореЗрдВ рд╕реЗ 'рдХрд░реНрддреГрд╡рд╛рдЪреНрдп' рдХрд╛ рдЙрджрд╛рд╣рд░рдг рдХреМрдирд╕рд╛ рд╣реИ?
рд╡рд┐рд╢рд╛рд▓┬а┬а
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