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If (A(t)=30+5t) and (B(t)=54+3t), at what (t) will (A(t)) be (6) more than (B(t))?यदि (A(t)=30+5t) और (B(t)=54+3t), तो किस (t) पर (A(t)) (B(t)) से (6) अधिक होगा?
Answer and explanationउत्तर और व्याख्या
Correct answer:सही उत्तर: \(t=15\)\(t=15\)
The condition is \(A(t)=B(t)+6\). Thus, \(30+5t=54+3t+6\). Simplifying gives \(2t=30\), so \(t=15\). At \(t=14\), \(A(t)-B(t)=4\), not 6. Exam tip: Translate “6 more than” as \(A=B+6\).शर्त है कि \(A(t)=B(t)+6\)। अतः \(30+5t=54+3t+6\)। दोनों पक्षों को सरल करने पर \(2t=30\), इसलिए \(t=15\) मिलता है। \(t=14\) पर \(A(t)-B(t)=4\) होगा, 6 नहीं। परीक्षा टिप: “से 6 अधिक” को हमेशा \(A=B+6\) के रूप में लिखें।
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