Question : Directions: Study the following histogram of marks in mathematics (out of 50) of students in a class and answer the following question
If the students have got the marks out of 50 and if an A+ grade has been declared for above 90%, then the number of students who have got A+ grade is:
Option 1: 10
Option 2: 20
Option 3: 30
Option 4: 40
Correct Answer: 10
Solution :
As per the given graph,
The required class interval for the students has got 90% marks out of 50 marks = 90% of 50 marks = 45 marks
From the graph, the required class interval is from 45 to 50.
The number of students who have got A+ grades = 10
Hence, the correct answer is 10.
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