allery(x + y) : (x - y) = 7 : 3 అయితే, x : y
A3 : 7
B2 : 5
C7 : 3
D5 : 2
Answer & Solution
Correct answer: D. 5 : 2
అడ్డగుణకారం చేయగా 3x + 3y = 7x - 7y వస్తుంది, కాబట్టి 4x = 10y మరియు x : y = 5 : 2.
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