Permutations and Combinations: JEE Main 2018 Mathematics question

JEE Main 2018 · 15 Apr, Morning shift · Q4844

JEE Main 201815 Apr, Morning shiftMathematicsMediumPermutations and Combinations98× since 2002

-

digit numbers are formed using only three digits 2, 5 and 7. The smallest value of n for which 900 such distinct numbers can be formed, is :

JEE Main 2018 · 15 Apr, Morning shift · Q4844

JEE Main 201815 Apr, Morning shiftMathematicsMediumPermutations and Combinations98× since 2002

-

digit numbers are formed using only three digits 2, 5 and 7. The smallest value of n for which 900 such distinct numbers can be formed, is :

More on Permutations and Combinations