यदि (g(x)=420-14x), तो (g(2x)-g(6x)) कब (224) होगा?
If (g(x)=420-14x), when will (g(2x)-g(6x)) be (224)?
Explanation opens after your attempt
B. (x=4)
Concept
(g(2x)-g(6x)=(420-28x)-(420-84x)=56x). From (56x=224), (x=4).
Why this answer is correct
The correct answer is B. (x=4). (g(2x)-g(6x)=(420-28x)-(420-84x)=56x). From (56x=224), (x=4).
Exam Tip
(g(2x)-g(6x)=(420-28x)-(420-84x)=56x) है। (56x=224) से (x=4) है।
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