यदि (y=220+ax) में (x=9) से (x=17) तक (y) (144) बढ़ता है, तो (a) क्या है?

If in (y=220+ax), (y) increases by (144) from (x=9) to (x=17), what is (a)?

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

C. (18)

Step 1

Concept

The change in (x) is (8). From (8a=144), (a=18).

Step 2

Why this answer is correct

The correct answer is C. (18). The change in (x) is (8). From (8a=144), (a=18).

Step 3

Exam Tip

(x) में परिवर्तन (8) है। (8a=144) से (a=18) मिलता है।

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Mathematics Answer, Explanation and Revision Hints

यदि (y=220+ax) में (x=9) से (x=17) तक (y) (144) बढ़ता है, तो (a) क्या है? / If in (y=220+ax), (y) increases by (144) from (x=9) to (x=17), what is (a)?

Correct Answer: C. (18). Explanation: (x) में परिवर्तन (8) है। (8a=144) से (a=18) मिलता है। / The change in (x) is (8). From (8a=144), (a=18).

Which concept should I revise for this Mathematics MCQ?

The change in (x) is (8). From (8a=144), (a=18).

What exam hint can help solve this Mathematics question?

(x) में परिवर्तन (8) है। (8a=144) से (a=18) मिलता है।