InterviewSolution
Saved Bookmarks
InterviewSolution
| 1. |
The length of a cold storage is double itsbreadth. Its height is `3m e t r e sdot`The area of its four walls (including doors) is `108m^2dot`Find its volume. |
|
Answer» Let the breadth of the cold storage be x metres Then, its length = 2x metres and height = 3 metres Area of the four walls of the cold storage `= {2 (l + b) xx h)` sq units `= {2 (2x + x) xx 3} m^(2) = (18x) m^(2)` But, area of 4 walls `= 108 m^(2)` (given) `:. 18x = 108 rArr x = (108)/(18) = 6` So, breadth = 6 m and length = 12 m Volume of the cold storage `= (l xx b xx h)` cubic units `= (12 xx 6 xx 3) m^(3) = 216 m^(3)` |
|