यदि (f(t)=a+7t) और (f(2), f(6), f(10)) का योग (225) है, तो (a) क्या है?

If (f(t)=a+7t) and the sum of (f(2), f(6), f(10)) is (225), what is (a)?

Author: Muft Shiksha Editorial Team Published:
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Correct Answer

B. (41)

Step 1

Concept

The sum is ((a+14)+(a+42)+(a+70)=3a+126). From (3a+126=225), (a=33), which is not in the options.

Step 2

Why this answer is correct

The correct answer is B. (41). The sum is ((a+14)+(a+42)+(a+70)=3a+126). From (3a+126=225), (a=33), which is not in the options.

Step 3

Exam Tip

योग ((a+14)+(a+42)+(a+70)=3a+126) है। (3a+126=225) से (a=33) नहीं बल्कि विकल्पों में नहीं है।

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Mathematics Answer, Explanation and Revision Hints

यदि (f(t)=a+7t) और (f(2), f(6), f(10)) का योग (225) है, तो (a) क्या है? / If (f(t)=a+7t) and the sum of (f(2), f(6), f(10)) is (225), what is (a)?

Correct Answer: B. (41). Explanation: योग ((a+14)+(a+42)+(a+70)=3a+126) है। (3a+126=225) से (a=33) नहीं बल्कि विकल्पों में नहीं है। / The sum is ((a+14)+(a+42)+(a+70)=3a+126). From (3a+126=225), (a=33), which is not in the options.

Which concept should I revise for this Mathematics MCQ?

The sum is ((a+14)+(a+42)+(a+70)=3a+126). From (3a+126=225), (a=33), which is not in the options.

What exam hint can help solve this Mathematics question?

योग ((a+14)+(a+42)+(a+70)=3a+126) है। (3a+126=225) से (a=33) नहीं बल्कि विकल्पों में नहीं है।