A box contains 10 balls, 4 of which are white. If one ball is drawn at random, w

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Question: A box contains 10 balls, 4 of which are white. If one ball is drawn at random, what is the probability that it is not white? (2022)

Options:

Correct Answer: 3/5

Exam Year: 2022

Solution:

Number of non-white balls = 10 - 4 = 6. Probability = 6/10 = 3/5.

A box contains 10 balls, 4 of which are white. If one ball is drawn at random, what is the probability that it is not white? (2022)

A box contains 10 balls, 4 of which are white. If one ball is drawn at random, what is the probability that it is not white? (2022)

Step 1: Identify the total number of balls in the box. There are 10 balls.
Step 2: Identify how many of those balls are white. There are 4 white balls.
Step 3: Calculate the number of non-white balls by subtracting the number of white balls from the total number of balls. This is 10 - 4 = 6.
Step 4: To find the probability of drawing a non-white ball, divide the number of non-white balls by the total number of balls. This is 6 / 10.
Step 5: Simplify the fraction 6 / 10 to its simplest form. This is 3 / 5.

Probability Calculation – Understanding how to calculate the probability of an event occurring, in this case, the probability of drawing a non-white ball from a box.
Complementary Events – Recognizing that the probability of an event not occurring can be found by subtracting the probability of the event occurring from 1.