Probability (Add Maths)

A fair dice is thrown once. Calculate the probability that the score on the dice is either an odd number or a prime number.
Dadu adil dilambung sekali. Kirakan kebarangkalian bahawa skor pada dadu adalah sama ada nombor ganjil atau nombor perdana.

•  $\frac{2}{3}$  

•  $\frac{1}{2}$  

•  $\frac{1}{3}$  

•  $\frac{5}{6}$  

A bag contains 24 sweets of colours red and yellow. A sweet is drawn at random from the bag. The probability that a red sweet is drawn is  $\frac{5}{8}$  . Calculate the number of yellow sweets that have to be added to the bag so that the probability that a red sweet is drawn now becomes  $\frac{1}{2}$  .
Satu beg mengandungi 24 gula-gula yang  berwarna merah dan kuning. Satu gula diambil secara rawak dari beg itu. Kebarangkalian bahawa gula berwarna merah diambil ialah  $\frac{5}{8}$  .Hitung bilangan gula berwarna kuning yang perlu ditambah ke dalam beg supaya kebarangkalian bahawa gula berwarna merah diambil sekarang menjadi  $\frac{1}{2}$ .

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