Question 101

Study the bar graph and answer the question.

The number of neon lamps having life of 600 hours or more but less than 800 hours is what percentage of the total number of neon lamps having a life of 800 hours or more?

Solution

The number of neon lamps having life of 600 hours or more but less than 800 hours = 75 + 90 = 165

Number of neon lamps having a life of 800 hours or more = 80 + 70 + 55 + 35 = 240

=> Required % = $$\frac{165}{240}\times100=68.75\%$$

=> Ans - (D)

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