A postage stamp is 12mm in breadth and 20mm in length. Find the area of stamp in cm2
0.24
240
2.4
24
A
24
B
2.4
C
240
D
0.24
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Solution
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The correct option is D2.4
As we know that,
1cm=10mm
So, 1mm=0.1cm
Given:-
Length =20mm
=20×0.1cm
=2cm
Breadth =12mm
=12×0.1cm
=1.2cm
Area of stamp = Length × Breadth
=2×1.2
=2.4cm2
Hence, option D is correct.
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