A carpet of size 5m×2m has 25 cm wide red border.the inner part of the carpet is blue in colour .find the area of blue portion and the ratio of blue portion to red portion.
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area of carpet=5m×2m = 10m
in cm =1m=100cm
so,10m=1000cm
area of red portion = 25cm
area of blue portion =1000cm-25cm
=975cm
so ratio of blue to red =975:25
=39:1
in cm =1m=100cm
so,10m=1000cm
area of red portion = 25cm
area of blue portion =1000cm-25cm
=975cm
so ratio of blue to red =975:25
=39:1
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