A student taking test consisting of 10 quetions is told that each after the first is worth 2 mks more than the preceding ques. If 3rd ques. of the test is worh 5 mks..,what is the maximum score that the student can obtain by attempting 8 questions.

Hi!

Here is the answer to your question.

The maximum marks can be scored by obtaining full marks from 3^{rd} to 10^{th} questions.

Here,

*a*= 5,*d*= 2,*n*= 8[Marks to 3

^{rd}question = 5, 10^{th}question is 8^{th}term when first term is 3^{rd}question]So, maximum mark that the student can obtain

Best wishes!

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