alleryजर (x + y) : (x - y) = 7 : 3, तर x : y चे गुणोत्तर किती?
A3 : 7
B2 : 5
C7 : 3
D5 : 2
Answer & Solution
Correct answer: D. 5 : 2
तिरकस गुणाकार केल्यास 3x + 3y = 7x - 7y मिळते, म्हणून 4x = 10y आणि x : y = 5 : 2.
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