In redesigning a cold storage, the length is increased by 30% , the breadth is increased by 50% and the height is reduced by 20% . what is the net increase in the volume of the redesigned cold storage compared to the previous design?
Created: 6 years ago |
Updated: 3 years ago
best des
Let, length, width and height of the cold storage are respectively l, w and h.
so, volume = lwh
New length = l + 30/100 l = 1.3 l
New width = w + 50/100 w = 1.5 w
New height = h - 20/100 h = 0.8 h
so, new volume = 1.3 l * 1.5w * 0.8 h = 1.56 lwh
increase in volume = (1.56 - 1)lwh = 0.56 lwh
percentage increase in volume = 0.56 * 100% = 56%.
Md Azizur Rahman
Founder of Satt
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