यदि (Z(x)=b-7x) रेखीय क्षय है और (Z(2)+Z(6)=128), तो (b) क्या है?
If (Z(x)=b-7x) is linear decay and (Z(2)+Z(6)=128), what is (b)?
Explanation opens after your attempt
B. (92)
Concept
(Z(2)+Z(6)=(b-14)+(b-42)=2b-56). From (2b-56=128), (b=92).
Why this answer is correct
The correct answer is B. (92). (Z(2)+Z(6)=(b-14)+(b-42)=2b-56). From (2b-56=128), (b=92).
Exam Tip
(Z(2)+Z(6)=(b-14)+(b-42)=2b-56) है। (2b-56=128) से (b=92) मिलता है।
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