Question : The given histogram shows the height of the students. What is the percentage of students whose height is in the class interval 165-175? (correct to the nearest integer)
Option 1: 34%
Option 2: 37%
Option 3: 25%
Option 4: 39%
Correct Answer: 37%
Solution : As per the graph, The total number of students = 15 + 13 + 10 + 14 + 12 + 6 = 70 The number of students whose height is in the class interval 165-175 = 14 + 12 = 26 Required percentage = $\frac{\text{Students in the class interval 165-175 }}{\text{Total students}}$ × 100 = $\frac{\text{26}}{\text{70}}$ × 100 = 37.14 $\approx$ 37% Hence, the correct answer is 37%
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Question : The given histogram shows the height of the students. The number of students whose height is in the class interval 170-175 is what per cent less than the number of students whose height is in the interval 165-170? (correct to one decimal place)
Option 1: 14.3%
Option 2: 19.5%
Option 3: 11.5%
Option 4: 17.3%
Question : The given histogram shows the height of the students.
What is the percentage of students whose height is in the class interval 160 -170? (correct to the nearest integer)
Option 1: 51
Option 2: 34
Option 3: 25
Option 4: 39
The number of students whose height is in the class interval 165-170 is what percentage less than the number of students whose height is in the interval 150-155? (correct to one decimal place)
Option 1: 4.8%
Option 2: 6.7%
Option 3: 1.9%
Option 4: 5.5%
The difference between the number of students whose height is between 150-155 cm and the number of students whose height lies between 175-180 cm is:
Option 1: 8
Option 2: 9
Option 3: 3
Option 4: 7
Question : Directions: A paper is folded and cut as shown in the following figures. How will it appear when unfolded?
Option 1:
Option 2:
Option 3:
Option 4:
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