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Examples on P&C (Part II)
https://doubtnut.com/question-answer/find-number-of-7-digit-numbers-in-the-form-of-abcdefg-where-a-lt-b-lt-c-lt-d-gt-e-gt-f-gt-g-6519
AS
Akash Sb
a month ago
there repetion is considered... here it is not considered
Mayank Singh
a month ago
Hey Akash thanks for the reply but it is not written in the question that repetition is not considered the given condition is a <b<c<d> e> f>g, therefore, c can be equal to e
Mayank Singh
a month ago
or b can be equal f
Mayank Singh
a month ago
example number 1234321 is possible as it satisfies all conditions given in the quesation
Mayank Singh
a month ago
or 2367543 it is also possible and position b=g as 3 repeated