A closed wooden box 80cm long, 65cm wide and 45cm heigh, is made up of wood 2.5 cm thick. Find the capacity of the box and the weight of the box, if 100cm3 of wood weighs 8 grams.
Answers
Answered by
1
Step-by-step explanation:
l
′
=80−2(2.5)=75cm
b
′
=60cm
h
′
=40cm
[Dimensions of inside of box]
v=l
′
b
′
h
′
=(75)(60)(40)
=180000cm
3
100cm
3
→8g
180000cm
3
→
100
8
×180000
=14400g
Weight=14.4 kg.
Answered by
8
Answer:
We are given,
Outer length of box = 80cm
Outer width of box = 65cm
Outer height of box = 45cm
Since thickness of wood is 2.5cm, inner length of box = 80 – 2x 2.5 = 75 cm
inner width of box = 65 - 5 = 60cm
inner height of box = 45 - 5 = 40cm
Capacity of the box = 75x 60 x 40 =180,000cm²
Volume of wooden part = 80x 65 x 45-75 x 60 x 40 = 54.00 cm
Weight of 100cm of wood=8g
8
Weight of 54.000cm of wood = x54,000 = 4,320 g
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