dimensions of a closed wooden box in the ratio 5 : 4 : 3 . if the cost of painting its outer surface at the rate of Rs 5 per m² is Rs9250. find the dimensions of the box .
Answers
Answered by
34
The total surface area of a cuboid is 2(lb+lh+bh)
Let the dimensions be 5x, 4x and 3x
Total surface area X cost of painting per sq m = total cost
2(5x.4x+ 5x.3x+ 4x.3x) X 5 = 9250
47x^2 = 925
x^2 = 19.6
x= 4.4 approx
Dimensions are 22m, 17.6m and 13.2cm
Answered by
4
Answer:
final answer will be 22m 17.6m and 13.2
Similar questions