यदि (f(t)=a+6t) और (f(1), f(5), f(9)) का योग (180) है, तो (a) क्या है?

If (f(t)=a+6t) and the sum of (f(1), f(5), f(9)) is (180), what is (a)?

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Correct Answer

B. (30)

Step 1

Concept

The sum is ((a+6)+(a+30)+(a+54)=3a+90). From (3a+90=180), (a=30).

Step 2

Why this answer is correct

The correct answer is B. (30). The sum is ((a+6)+(a+30)+(a+54)=3a+90). From (3a+90=180), (a=30).

Step 3

Exam Tip

योग ((a+6)+(a+30)+(a+54)=3a+90) है। (3a+90=180) से (a=30) है।

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Mathematics Answer, Explanation and Revision Hints

यदि (f(t)=a+6t) और (f(1), f(5), f(9)) का योग (180) है, तो (a) क्या है? / If (f(t)=a+6t) and the sum of (f(1), f(5), f(9)) is (180), what is (a)?

Correct Answer: B. (30). Explanation: योग ((a+6)+(a+30)+(a+54)=3a+90) है। (3a+90=180) से (a=30) है। / The sum is ((a+6)+(a+30)+(a+54)=3a+90). From (3a+90=180), (a=30).

Which concept should I revise for this Mathematics MCQ?

The sum is ((a+6)+(a+30)+(a+54)=3a+90). From (3a+90=180), (a=30).

What exam hint can help solve this Mathematics question?

योग ((a+6)+(a+30)+(a+54)=3a+90) है। (3a+90=180) से (a=30) है।