यदि (P(t)=75+8t) और (Q(t)=219-10t) है तो किस (t) पर (P(t)=Q(t)) होगा?
If (P(t)=75+8t) and (Q(t)=219-10t), at which (t) will (P(t)=Q(t))?
Explanation opens after your attempt
B. (t=8)
Concept
From (75+8t=219-10t), (18t=144). Therefore (t=8) is correct.
Why this answer is correct
The correct answer is B. (t=8). From (75+8t=219-10t), (18t=144). Therefore (t=8) is correct.
Exam Tip
(75+8t=219-10t) से (18t=144) होता है। इसलिए (t=8) सही है।
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