How many planks each of which is 2.5 m long, 60 cm broad and 2 cm thick can be prepared from a wooden block of size 4 m ×75×48 cm ? (Assuming there is no wastage).
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Answered by
1
The concept used will be volume
Volume of plank = lbh
250×60×2 ×x
Volume of wooden block = lbh
400×75×48
Equating both
250×60×2×x=400×75×48
= 48 planks
Volume of plank = lbh
250×60×2 ×x
Volume of wooden block = lbh
400×75×48
Equating both
250×60×2×x=400×75×48
= 48 planks
Answered by
0
LENGTH OF PLANKS = 2.5M = 250CM
BREADTH OF PLANKS = 60CM
HEIGHT OF PLANKS = 2CM
VOLUME OF EACH PLANKS = L×B×H
= 250×60×2 = 30000CM³
LENGTH OF WOODEN BLOCK = 4M = 400CM
BREADTH OF WOODEN BLOCK = 75CM
HEIGHT OF BLOCK = 48CM
VOLUME OF WOODEN BLOCK = L×B×H
= 400×75×48 = 1200000CM³
NUMBER OF PLANKS = VOLUME OF WOODEN BLOCK/VOLUME OF EACH PLANKS.
= 1200000/30000 = 40
BREADTH OF PLANKS = 60CM
HEIGHT OF PLANKS = 2CM
VOLUME OF EACH PLANKS = L×B×H
= 250×60×2 = 30000CM³
LENGTH OF WOODEN BLOCK = 4M = 400CM
BREADTH OF WOODEN BLOCK = 75CM
HEIGHT OF BLOCK = 48CM
VOLUME OF WOODEN BLOCK = L×B×H
= 400×75×48 = 1200000CM³
NUMBER OF PLANKS = VOLUME OF WOODEN BLOCK/VOLUME OF EACH PLANKS.
= 1200000/30000 = 40
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