Mathematics - Permutation & Combination Question with Solution | TestHub

MathematicsPermutation & CombinationDivision of Identical itemsMedium2 minQB

MathematicsMediumsingle choice

Number of ordered triplets of natural number $(a, b, c)$ for which $abc \leq 11$ is

Answer:

Solution:

$abc = 1$ in 1 ways

$abc = 2, 3, 5, 7, 11$ in 15 ways

$abc = 4, 9$ in 12 ways

$abc = 8$ in 10 ways

$abc = 6, 10$ in 18 ways

So, total number of solution is 56

Stream:JEESubject:MathematicsTopic:Permutation & CombinationSubtopic:Division of Identical items

⏱ 2mℹ️ Source: QB

Loading discussions...