Question 42

Jambmaths question: 

The bar chart above shows the distribution of marks in a class test. If the pass mark is 5, what percentage of the students failed the test?

Option A: 

10%

Option B: 

20%

Option C: 

50%

Option D: 

60%

Jamb Maths Solution: 

Number of students who scored less than 5 is 2 + 3 + 4 + 6 + 5 =20

Total number of students = 2 + 3 + 4 + 6 + 5 + 4 + 6 + 5 + 1 + 3 + 1 = 40

Percentage of those who failed = $\frac{20}{40}\times 100percent=50percent$

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