JEE MATHEMATICS MCQ: PERMUTATIONS

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The number of ways in which 3 boys and 3 girls (all are of different heights) can be arranged in a line, so that boys as well as girls among themselves are in decreasing order of height from left to right, is

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Correct option: C

Option D (766) is correct because it is the total count of numbers less than

2 \cdot 10^8

formed using only 1 and 2.

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How many different nine digit numbers can be formed from the number 223355888 by rearranging its digits so that the odd digits occupy even positions? The number of ways in which

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