alleryयदि (x + y) : (x - y) = 7 : 3 है, तो x : y का मान क्या है?
A3 : 7
B2 : 5
C7 : 3
D5 : 2
Answer & Solution
Correct answer: D. 5 : 2
तिर्यक गुणन (cross-multiplication) करने पर 3x + 3y = 7x - 7y प्राप्त होता है, जिससे 4x = 10y और x : y = 5 : 2 प्राप्त होता है।
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