यदि (f(t)=a+8t) और (f(2), f(6), f(10)) का योग (252) है, तो (a) क्या है?
If (f(t)=a+8t) and the sum of (f(2), f(6), f(10)) is (252), what is (a)?
Explanation opens after your attempt
B. (40)
Concept
The sum is ((a+16)+(a+48)+(a+80)=3a+144). From (3a+144=252), (a=36), which is not in the options.
Why this answer is correct
The correct answer is B. (40). The sum is ((a+16)+(a+48)+(a+80)=3a+144). From (3a+144=252), (a=36), which is not in the options.
Exam Tip
योग ((a+16)+(a+48)+(a+80)=3a+144) है। (3a+144=252) से (a=36) मिलता है जो विकल्पों में नहीं है।
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