यदि (Z(x)=b-10x) रेखीय क्षय है और (Z(2)+Z(7)=130), तो (b) क्या है?

If (Z(x)=b-10x) is linear decay and (Z(2)+Z(7)=130), what is (b)?

Author: Muft Shiksha Editorial Team Published:
Explanation opens after your attempt
Correct Answer

C. (110)

Step 1

Concept

(Z(2)+Z(7)=(b-20)+(b-70)=2b-90). From (2b-90=130), (b=110).

Step 2

Why this answer is correct

The correct answer is C. (110). (Z(2)+Z(7)=(b-20)+(b-70)=2b-90). From (2b-90=130), (b=110).

Step 3

Exam Tip

(Z(2)+Z(7)=(b-20)+(b-70)=2b-90) है। (2b-90=130) से (b=110) मिलता है।

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Mathematics Answer, Explanation and Revision Hints

यदि (Z(x)=b-10x) रेखीय क्षय है और (Z(2)+Z(7)=130), तो (b) क्या है? / If (Z(x)=b-10x) is linear decay and (Z(2)+Z(7)=130), what is (b)?

Correct Answer: C. (110). Explanation: (Z(2)+Z(7)=(b-20)+(b-70)=2b-90) है। (2b-90=130) से (b=110) मिलता है। / (Z(2)+Z(7)=(b-20)+(b-70)=2b-90). From (2b-90=130), (b=110).

Which concept should I revise for this Mathematics MCQ?

(Z(2)+Z(7)=(b-20)+(b-70)=2b-90). From (2b-90=130), (b=110).

What exam hint can help solve this Mathematics question?

(Z(2)+Z(7)=(b-20)+(b-70)=2b-90) है। (2b-90=130) से (b=110) मिलता है।