A box contain 150 orange is taken out from the box at random and the probability of its being rotten is 0.06 then find the number of good orange in the box.
Total no. of Oranges = 150
Probability of rotten oranges =0.06
∴ Probability of good oranges = 1 – 0.06 = 0.94
⇒ (no. of good oranges)/(no. of total oranges) = 0.94
⇒ no. of good oranges = 0.94 × 150 = 141
Thus, the number of good orange in the box = 141