A truck is used to transport some wood panels - OCR - GCSE Maths - Question 6 - 2020 - Paper 6
Question 6
A truck is used to transport some wood panels.
Each wood panel is a cuboid measuring 2.4 m by 1.2 m by 1.8 cm.
The density of each wood panel is 750 kg/m³.
The truck... show full transcript
Worked Solution & Example Answer:A truck is used to transport some wood panels - OCR - GCSE Maths - Question 6 - 2020 - Paper 6
Step 1
Calculate the volume of one wood panel
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Answer
To find the volume of the wood panel, we use the formula for the volume of a cuboid:
V=extlength×extwidth×extheight
Given:
Length = 2.4 m = 240 cm
Width = 1.2 m = 120 cm
Height = 1.8 cm
Substituting the values:
V=240extcm×120extcm×1.8extcm=51840extcm3
To convert this volume into cubic meters:
V=51840extcm3×1000000extcm31extm3=0.05184extm3
Step 2
Calculate the mass of one wood panel
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Answer
Using the formula for mass:
M=Density×Volume
Given the density is 750 kg/m³, we calculate:
M=750extkg/m3×0.05184extm3=38.88extkg
Step 3
Calculate the total mass the truck can carry
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Answer
The truck can carry 15 tonnes, which is equivalent to:
15exttonnes=15000extkg
Step 4
Calculate the maximum number of wood panels
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Answer
To find the maximum number of wood panels the truck can carry, we use:
Number of panels=Mass of one wood panelTotal mass truck can carry
Substituting the known values:
Number of panels=38.88extkg15000extkg≈385.1
Since we cannot carry a fraction of a panel, we take the whole number: