The average 8-year-old gets 30 questions right on an intelligence test, whereas the average 12-year-old gets 50 questions right. What is the mental age of an 8 year old who gets 50 questions right?Multiple choice question.8101250
Question
The average 8-year-old gets 30 questions right on an intelligence test, whereas the average 12-year-old gets 50 questions right. What is the mental age of an 8 year old who gets 50 questions right?Multiple choice question.8101250
Solution
To solve this problem, we need to find the ratio of the number of questions answered correctly by the 8-year-old to the average number of questions answered correctly by the 12-year-old.
Step 1: Find the ratio of the number of questions answered correctly by the 8-year-old to the average number of questions answered correctly by the 12-year-old.
50 (questions answered by the 8-year-old) / 50 (average questions answered by the 12-year-old) = 1
Step 2: Multiply this ratio by the age of the 12-year-old to find the mental age of the 8-year-old.
1 * 12 (age of the 12-year-old) = 12
So, the mental age of an 8-year-old who gets 50 questions right is 12 years old.
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