यदि (P(t)=70+5t) और (Q(t)=190-10t) है तो किस (t) पर (P(t)=Q(t)) होगा?
If (P(t)=70+5t) and (Q(t)=190-10t), at which (t) will (P(t)=Q(t))?
Explanation opens after your attempt
B. (t=8)
Concept
From (70+5t=190-10t), (15t=120). Therefore (t=8) is correct.
Why this answer is correct
The correct answer is B. (t=8). From (70+5t=190-10t), (15t=120). Therefore (t=8) is correct.
Exam Tip
(70+5t=190-10t) से (15t=120) होता है। इसलिए (t=8) सही है।
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