Question

What must be subtracted from each term of the ratio 3:7 . so, that the ratio become 2:5

Answer 1

Step-by-step explanation:

Let the number which must be subtracted be 'X'

3-X\7-X=2/5[ratio is expressed in fraction here]

15-5X=14-2X[by cross multiplication]

3X=1[by taking like terms one side]

X=1/3

Therefore 1/3 is to be added to 3:7 s that the ratio becomes 2:5

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