Study the given bar graph which shows the life time (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?

56.25%

Number of neon lamps having life 500 hours or more but less than 700 hours

= 60 + 75

= 135

Number of neon lamps having life 800 hours or more

= 80 + 70 + 55 + 35

= 240

Required percentage = \(\frac{135 }{240}\) × 100

= 56.25%