a box whose dimensions are 80 CM X 50 cm x 25 cm is to be painted from outside then how many paint boxes are required if one paint box covers an area of 100 cm square
justice2:
1000 paint box
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its ok
please tell me answer
140 boxes
but right answer is 145
no answer should be 140 let me check
140 is right
yes
2 (80×50+50×25+25×80) 2 (4000+1250+2000) 2 (7250) 14500 then you know how 145 will come
oh you are right
divide it by 100 because in question it is written that 100 per cm square
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