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anonymous
 one year ago
If the cost of painting 1 sq m is Rs.50, then what will be the maximum amount of saved in painting the room in the most economical way, if the sum of the length , breadth and height is 21 and all sides are integers? (floor is not painted ).
1 ) 10850
2) 8400
3) 9650
4) 8540
anonymous
 one year ago
If the cost of painting 1 sq m is Rs.50, then what will be the maximum amount of saved in painting the room in the most economical way, if the sum of the length , breadth and height is 21 and all sides are integers? (floor is not painted ). 1 ) 10850 2) 8400 3) 9650 4) 8540

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hartnn
 one year ago
Best ResponseYou've already chosen the best response.0for the saved amount to be maximum, lets consider the volume to be maximum. Volume will be max when the room is cubeshaped. length = height = breadth = 7 (since their sum= 21) now try to calculate area of the faces, excluding floor

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Should't volume be the minimum to save the maximum ?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0And if I calculate like the way you suggested, the answer comes out to be Rs.12250

hartnn
 one year ago
Best ResponseYou've already chosen the best response.0how are we calculating saved amount here?

hartnn
 one year ago
Best ResponseYou've already chosen the best response.0seems to be an incomplete question. to find how much we saved, we need to find how much we spent before...

hartnn
 one year ago
Best ResponseYou've already chosen the best response.0saved amt = amt spent before  amount spent now, when sum = 21
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