Question : Study the given histogram and answer the question that follows.

The total number of neon lamps having a lifetime of 800 or more hours is approximately what percentage more than the total number of neon lamps having a lifetime of 400 or more hours but less than 800 hours?

Option 1: 22.7%

Option 2: 12.5%

Option 3: 32.2%

Option 4: 31.8%

Question : Now-a days yellow lamps are frequently used as street lights. Which of the following gases is used in these lamps?

Option 1: Sodium

Option 2: Neon

Option 3: Hydrogen

Option 4: Nitrogen

Question : Study the given histogram and answer the question that follows.


The number of persons weighing 55 kg or more but less than 75 kg is what percentage more than the number of persons weighing 80 kg or more but less than 100 kg (correct to one decimal place)?

Option 1: 77.8%

Option 2: 88.2%

Option 3: 66.7%

Option 4: 68.4%

Question : A number is decreased by 20% to get another number. The number so obtained is increased by 200% to get a third number. The difference between the third number and the original number is what percentage more or less than the difference between the second and the third number?

Option 1: 15.7% more

Option 2: 15.7% less

Option 3: 12.5% more

Option 4: 12.5% less

Question : Directions: Study the histogram of the marks (in mathematics) distribution of 50 students in class IX and answer the following question:

The percentage of students who have secured marks more than 59 is:

Option 1: 13%

Option 2: 17%

Option 3: 34%

Option 4: 26%

Question : Directions: Study the histogram of the marks (in mathematics) distribution of 50 students in class IX and answer the following question:

The number of students who have secured marks less than 60 is:

Option 1: 12

Option 2: 15

Option 3: 33

Option 4: 7