Answer :
Let the two quantities be 3x and 5x
i). If the smaller alone is made four times the original
Smaller quantity = 3x
4 × 3x = 12x
New ratio
∴ New ratio is 12: 5
ii). If the smaller is doubled and the larger is halved
Smaller quantity = 3x and larger quantity = 5x
⇒
⇒
∴ New ratio is 12: 5
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