यदि (f(t)=a+4t) और (f(1), f(3), f(5)) का योग (81) है, तो (a) क्या है?

If (f(t)=a+4t) and the sum of (f(1), f(3), f(5)) is (81), what is (a)?

Author: Muft Shiksha Editorial Team Published:
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Correct Answer

A. (15)

Step 1

Concept

The sum is ((a+4)+(a+12)+(a+20)=3a+36). From (3a+36=81), (a=15).

Step 2

Why this answer is correct

The correct answer is A. (15). The sum is ((a+4)+(a+12)+(a+20)=3a+36). From (3a+36=81), (a=15).

Step 3

Exam Tip

योग ((a+4)+(a+12)+(a+20)=3a+36) है। (3a+36=81) से (a=15) है।

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Mathematics Answer, Explanation and Revision Hints

यदि (f(t)=a+4t) और (f(1), f(3), f(5)) का योग (81) है, तो (a) क्या है? / If (f(t)=a+4t) and the sum of (f(1), f(3), f(5)) is (81), what is (a)?

Correct Answer: A. (15). Explanation: योग ((a+4)+(a+12)+(a+20)=3a+36) है। (3a+36=81) से (a=15) है। / The sum is ((a+4)+(a+12)+(a+20)=3a+36). From (3a+36=81), (a=15).

Which concept should I revise for this Mathematics MCQ?

The sum is ((a+4)+(a+12)+(a+20)=3a+36). From (3a+36=81), (a=15).

What exam hint can help solve this Mathematics question?

योग ((a+4)+(a+12)+(a+20)=3a+36) है। (3a+36=81) से (a=15) है।