Mathematics - Probability Question with Solution | TestHub

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

MathematicsMediuminteger

If two natural numbers $x, y$ are selected at randomly and probability that $x^{2} + y^{2}$ is multiple of 5 is p , then 25 p is

Answer:

Solution:

Total number of ways of end digits of $x, y$ is 100

and favourable is $8 \times 4 + 2 \times 2 = 36$

So, $p = \frac{36}{100} = \frac{9}{25}$

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

⏱ 2mℹ️ Source: QB

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