Question
16 rotten bananas are accidentally mixed with 155 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 = 155 + 16 = 171 bananas P(E) = (Number of favourable outcomes) / (Total number of outcomes) P(picking a good banana) = 155/171
More Probability Questions
Find the simplified of the following expression:
Simplify the following expression:
416 ÷ 8 + 132 – 25% of 420 = ?
9 × 4 ? ÷ 16 = 144
42 + 52% of 300 - ?% of 200 = 88
What value should come in place of (?) question mark in the given expression.
17 × 15 − 96 ÷ 8 + 6² = ?
19 × ? = 361 ÷ 19
Simplify the following expressions and choose the correct option.
(3/7) of {350 − [42 ÷ (3/2)]} = ?
15% of ? = 30% of 320 + 17 ×√676 – 63.5 × 8
390/? = √256 + 3.5
Relevant for Exams:
