Mathematics - Permutation & Combination Question with Solution | TestHub

MathematicsPermutation & CombinationDivision of Identical itemsMedium2 minQB

MathematicsMediuminteger

The no.of positive integer solutions of $x + y + z = 10$ , where $x, y, z$ are unequal is (20+ K ) then K is

Answer:

Solution:

$x < y < z$ , these are $127, 361, 145, 235$

total $= 3! \times 4 = 24 = 20 + 4$

$∴ K = 4$

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

⏱ 2mℹ️ Source: QB

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