यदि (g(t)=b-4t) और (g(1), g(5), g(9)) का योग (156) है, तो (b) क्या है?
If (g(t)=b-4t) and the sum of (g(1), g(5), g(9)) is (156), what is (b)?
Explanation opens after your attempt
D. (72)
Concept
The sum is ((b-4)+(b-20)+(b-36)=3b-60). From (3b-60=156), (b=72).
Why this answer is correct
The correct answer is D. (72). The sum is ((b-4)+(b-20)+(b-36)=3b-60). From (3b-60=156), (b=72).
Exam Tip
योग ((b-4)+(b-20)+(b-36)=3b-60) है। (3b-60=156) से (b=72) है।
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