If any four numbers are selected and they are | vedclass

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Question

(c) Total number of digits in any number at the unit place is $10$.

$	herefore $ $n(S) = 10$

To get the last digit in product is $1, 3, 5$ or $

Vedclass · Accepted Answer

$\frac{{16}}{{625}}$

Vedclass · Answer

(c) Total number of digits in any number at the unit place is $10$.

$	herefore $ $n(S) = 10$

To get the last digit in product is $1, 3, 5$ or $7$, it is necessary the last digit in each number must be $1, 3, 5$ or $7$.

$	herefore$ $n (A) = 4$,

$	herefore $ $P (A)$ = $\frac{4}{{10}} = \frac{2}{5}$

$	herefore$ Required probability $ = {\left( {\frac{2}{5}} ight)^4} = \frac{{16}}{{625}}$.

If any four numbers are selected and they are multiplied, then the probability that the last digit will be $1, 3, 5$ or $7$ is

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