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Class 8-9-10, JEE & NEET
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The following table gives the lifetimes of 400 neon lamps:
(i) Represent the given information with the help of a histogram.
(ii) How many lamps have a lifetime of more than 700 hours?
(ii) Lamps with lifetime more than 700 hours = 74 + 62 + 48 = 184