Mathematics - Probability Question with Solution | TestHub

MathematicsProbabilityGeneral (Event SS, Definitions, Odd against/Favour)Medium2 minQB

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If number of numbers greater than 3000 , which can be formed by using the digits $0, 1, 2, 3$ , 4,5 without repetition, is $n$ then $\frac{n}{230}$ is equal to

Answer:

Solution:

No. of 4 digit numbers $= 3 \times 5 \times 4 \times 3 = 180$

No. of 5 digit numbers $= 5 \times 5 \times 4 \times 3 \times 2 = 600$

No. of 6 digit numbers $= 5 \times 5 \times 4 \times 3 \times 2 = 600$

$n = 1380 \Rightarrow \frac{n}{230} = 6$

Stream:JEESubject:MathematicsTopic:ProbabilitySubtopic:General (Event SS, Definitions, Odd against/Favour)

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