Q. Three ladies have each brought a child for admission to a school. The head of the school wishes to
interview the six people one by one, taking care that no child is interviewed before its mother. The
number of ways of doing this is
(A) 6 (B) 36 (C) 72 (D)90

Question

Ramesh V · Answer

Let tha people be L 1 S 1 L 2 S 2 L 3 S 3 each son comes after his mother taking son,mother as set , there are 3 sets whihc can be arranged in 3! ways answer : 6 ways -- regards Ramesh

rajat agarwal · Answer

but answer is 90 ways

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Q. Three ladies have each brought a child for admission to a school. The head of the school wishes to interview the six people one by one, taking care that no child is interviewed before its mother. The number of ways of doing this is (A) 6 (B) 36 (C) 72 (D)90

Q. Three ladies have each brought a child for admission to a school. The head of the school wishes to
interview the six people one by one, taking care that no child is interviewed before its mother. The
number of ways of doing this is
(A) 6 (B) 36 (C) 72 (D)90

2 Answers

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Q. Three ladies have each brought a child for admission to a school. The head of the school wishes to interview the six people one by one, taking care that no child is interviewed before its mother. The number of ways of doing this is (A) 6 (B) 36 (C) 72 (D)90

Q. Three ladies have each brought a child for admission to a school. The head of the school wishes to interview the six people one by one, taking care that no child is interviewed before its mother. The number of ways of doing this is (A) 6 (B) 36 (C) 72 (D)90

2 Answers

Think You Can Provide A Better Answer ?

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Q. Three ladies have each brought a child for admission to a school. The head of the school wishes to
interview the six people one by one, taking care that no child is interviewed before its mother. The
number of ways of doing this is
(A) 6 (B) 36 (C) 72 (D)90