The perimeter of a room is 48 m. The ratio of its length to its breadth is 7:5 if only the
length is extended by another 2 metres, what is the new ratio of its length to its breadth?
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The new ratio of its length to its breadth is 8:5
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Step-by-step explanation:
L(1)=7x , B(1)=5x
2(L(1)+B(1))=48m
L(1)+B(1)=24m
7x+5x=24m
12x=24m
x=2m
L(1)=7x=14m. , B(1)=5x=10m
L(2)=14m+2m=16m , B=10m
therefore, {L(2)/B(2)}={16m/10m)
=(8/5)=. 8:5
The new ratio is 8:5
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