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Study the given bar graph which shows the lifetime (in hours) of neon lamps and the number of neon lamps and answer the question that follows. The number of neon lamps having life 500 hours or more but less than 700 hours is what percent of the total number of neon lamps having life 800 hours or more?

Study the given bar graph which shows the lifetime (in hours) of neon lamps and the number of neon lamps and answer the question that follows. The number of neon lamps having life 500 hours or more but less than 700 hours is what percent of the total number of neon lamps having life 800 hours or more? Correct Answer 56.25%

Calculation:

Number of neon lamps having life 500 hours or more = 60 + 75

⇒ 135

Number of neon lamps having life 800 hours or more = 80 + 70 + 55 + 35

⇒ 240

Required percentage = (135/240) × 100

⇒ 56.25%

∴ The number of neon lamps having life 500 hours or more but less than 700 hours is 56.25% of the total number of neon lamps having life 800 hours or more.

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