Question
18 rotten bananas are accidentally mixed with 132 good
ones. It is not possible to just look at a banana and tell whether or not it is rotten. One banana is taken out at random from this lot. Determine the probability that the banana is taken out is a good one.Solution
Numbers of bananas = Numbers of rotten bananas + Numbers of good bananas ∴ Total number of bananas = 132 + 18 = 150 bananas P(E) = (Number of favourable outcomes) / (Total number of outcomes) P(picking a good banana) = 132/150 = 22/25
More Probability Questions
3, 6, 18, 90, 630, 5670
332, 404, 350, 390, 360, 380
42, 61, 78, 93, 102, 109
66, 220, 384, 543, 702, 861
45, 166, 310, 480, 675, 900
Find the wrong number in the given number series.
32, 61, 92, 129, 170, 211
- Find the wrong number in the given number series.
310, 259, 208, 167, 128, 115 Find the wrong number in given number series.
2669, 2838, 2993, 3185, 3397, 3629
- Find the wrong number in the given number series.
10, 35, 260, 885, 2110, 4135 Find the wrong number in given number series.
1177, 1161, 1125, 1061, 961, 837.
