find the number which added to each term of the ratio 27:35 changed the ratio 4:5.
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let x be the no.
a/q
27+x/35+x=4/5
5(27+x)=4(35+x)
135+5x=140+4x
5x-4x=140-135
x=5
the no. is 5
27+5/35+5
32/40
4/5
prooved
a/q
27+x/35+x=4/5
5(27+x)=4(35+x)
135+5x=140+4x
5x-4x=140-135
x=5
the no. is 5
27+5/35+5
32/40
4/5
prooved
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