Quantitative Aptitude :: Area - Discussion
11 / 75
Choose the correct option.
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?
Answer: Option (Login/Signup)
Asked In ::
5 Oct, 2019 7:27 PM
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.
Read Full Answer
Please Login First Click Here