A basket of fruits contains 10 bananas, 5 mangoes, and 5 apples. A fruit is selected at random. Calculate the probability of selecting an apple or a banana. Express the answer in percent form.
A. 0%
B. 12.5%
C. 62.5%
D. 75%
To calculate the probability of selecting an apple or a banana, we first need to determine the total number of fruits in the basket, which is 10 (bananas) + 5 (mangoes) + 5 (apples) = 20.
The probability of selecting an apple or a banana is the sum of the individual probabilities of selecting an apple and selecting a banana.
Probability of selecting an apple = Number of apples / Total number of fruits = 5 / 20 = 1/4
Probability of selecting a banana = Number of bananas / Total number of fruits = 10 / 20 = 1/2
Therefore, the probability of selecting an apple or a banana = 1/4 + 1/2 = 3/4 = 0.75
To express this probability in percent form, we multiply by 100:
0.75 * 100 = 75%
Therefore, the correct answer is D. 75%.