Three brothers divided 1620 among them in such a way that the share of the second is equal to \(\frac{5}{13}\) of the other two. Find the share of the second one.

450

                                  A + C    :          B

                Shares →      13       :           5

    Total amount = 1620

     13x + 5x = 1620

                x = \(\frac{1620}{18}\)

              5x = \(\frac{1620}{18}\) × 5 = 450