Mathematics - Probability Question with Solution | TestHub

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

MathematicsMediuminteger

Two natural numbers $x, y$ are selected at random, probability that $x^{2} + y^{2}$ is divisible by 5 is $\frac{k}{25}$ then $k =$ $____$

Answer:

Solution:

$P (E) = \frac{9}{25}$

Sample space $S = {0, 1, 2, 3, 4} \times {0, 1, 2, 3, 4}$

$E = {(0, 0) (1, 2) (2, 1) (1, 3) (3, 1) (2, 4) (4, 2) (3, 4) (4, 3)}$

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

⏱ 2mℹ️ Source: QB

Loading discussions...