class 12

Math

Algebra

Probability I

Let $n_{1},andn_{2}$, be the number of red and black balls, respectively, in box I. Let $n_{3}andn_{4}$,be the number one red and b of red and black balls, respectively, in box II. A ball is drawn at random from box 1 and transferred to box II. If the probability of drawing a red ball from box I, after this transfer, is $31 $ then the correct option(s) with the possible values of $n_{1}andn_{2}$ , is(are)