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If (Y(t)=66-6t), what is the decrease from (Y(2)) to (Y(3))?यदि (Y(t)=66-6t), तो (Y(2)) से (Y(3)) तक कमी कितनी है?
Answer and explanationउत्तर और व्याख्या
Correct answer:सही उत्तर: 66
Here, \(Y(2)=66-6(2)=54\) and \(Y(3)=66-6(3)=48\). Therefore, the decrease from \(Y(2)\) to \(Y(3)\) is \(54-48=6\). A decrease of \(12\) would occur over two time units, whereas this question compares consecutive time values. Exam tip: in a linear expression \(a-bt\), the value decreases by \(b\) whenever \(t\) increases by one unit.यहाँ \(Y(2)=66-6(2)=54\) और \(Y(3)=66-6(3)=48\) है। अतः \(Y(2)\) से \(Y(3)\) तक कमी \(54-48=6\) है। \(12\) दो समय-इकाइयों की कमी होती, जबकि यहाँ केवल एक समय-इकाई का अंतर है। परीक्षा टिप: रैखिक व्यंजक \(a-bt\) में प्रत्येक एक इकाई \(t\) बढ़ने पर मान \(b\) से घटता है।
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