यदि (y=260-bx) में (x=5) से (x=13) तक (y) (104) घटता है, तो (b) क्या है?
If in (y=260-bx), (y) decreases by (104) from (x=5) to (x=13), what is (b)?
Explanation opens after your attempt
C. (13)
Concept
The change in (x) is (8). The total decrease is (8b=104), so (b=13).
Why this answer is correct
The correct answer is C. (13). The change in (x) is (8). The total decrease is (8b=104), so (b=13).
Exam Tip
(x) में परिवर्तन (8) है। कुल कमी (8b=104) है इसलिए (b=13) है।
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