Chinese: Total: Indian: Malay: Chinese B: Chinese G

      3     :     8                                                                                  x5        x3

                   5    :      2                                                                     x8

    15     :   40   :     16   :    9

     9      :    24  :                                    2        :       7

Make total the same number of units.

15u + 16u = 31u (Chinese + Indian)

40u – 31u = 9u (Malay)

Make Chinese the same number of units.

(a) 9/40

(b) 7/24