If 2x + 3y = 18 and 5x + 3y = 42, what is the ratio x:y?यदि 2x + 3y = 18 और 5x + 3y = 42, तो x:y का अनुपात क्या है?
Answer and explanationउत्तर और व्याख्या
Correct answer:सही उत्तर: 12:112:1
Subtract the first equation from the second: 3x = 24, so x = 8. Substituting into 2x + 3y = 18 gives y = 2/3. Thus x:y = 8:2/3 = 24:2 = 12:1.दूसरे समीकरण में से पहला घटाने पर 3x = 24, इसलिए x = 8। इसे 2x + 3y = 18 में रखने पर y = 2/3 मिलता है। अतः x:y = 8:2/3 = 24:2 = 12:1।
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