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Quantitative Aptitude :: Area - Discussion

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A closed wooden box of thickness 0.5 cm and length 21 cm, width 11 cm, and height 6 cm, is painted on the inside. The cost of painting is Rs 70. What is the rate of painting in rupees per sq. cm?





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Since the box is thick of 0.5cm then we will have to find the inner dimensions of the box which is painted.

Length= 21-0.5*2=20, Width= 11-0.5*2=10 , Height= 6-0.5*2= 5

Total surface area:= 20*10*5=1000cm2

1000cm2 costs 70rs then cost per square cm will be 0.07Rs.

Asked In :: Accenture AMCAT

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