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Mean, Median and Mode · Question 62 of 67

Question 62

MediumOriginal question

In a class test, the marks ran from 22 to 91. The teacher gave 5 grace marks only to the students who scored below 40. What is the new range of marks?

Options for question 62

Show the answer and explanation
CorrectNot quiteAnswer B

Correct answer: B

Explanation

  1. The lowest mark, 22, rises to 27. The highest mark, 91, is untouched.

  2. New range = 91−27=6491 - 27 = 64.

Worth noting

69 assumes the range is unaffected, which holds only when every value gets the grace marks. 74 adds 5 to the range, and 59 subtracts 5 twice.

Concept
Range when only some values change
Typical time
70 s
Your time
—
The rule this testsRange and spread
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