Find k in JEE Mains Homework: Solving Equations with Geometric Progressions

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In summary, JEE Mains is a computer-based test consisting of two papers - Paper 1 for engineering and Paper 2 for architecture. It is conducted twice a year in January and April, and candidates can choose to appear for one or both of these sessions. There is negative marking in Paper 1, but no negative marking for numerical value-based questions in both papers. The eligibility criteria for JEE Mains requires candidates to have passed 10+2 with specific subjects and marks. The use of calculators or electronic devices is not allowed during the exam, but a virtual calculator is provided on the computer screen.
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smart_worker
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Homework Statement



Find k.

Homework Equations



If (10)9 + 2(11)1 (10)8 + 3(11)2 (10)7 + ...… + 10 (11)9 = k(10)9

The Attempt at a Solution



dividing both sides by 109,

1 + {2(11)1}/(10)1} + {3(11)2}/(10)2} + ..... + {10(11)9}/(10)9} = k

1(1.1)0 + 2(1.1)1 + 3(1.1)2 + ... + 10(1.1)9

∑(from n=0 to n=9) (n+1)(1.1)n
 
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It's an AGP. What's the problem?
 

1. What is the format of JEE Mains?

The JEE Mains is a computer-based test that consists of two papers - Paper 1 for engineering and Paper 2 for architecture. The exam is conducted in multiple sessions and each paper has a duration of 3 hours. Paper 1 consists of objective type questions from Physics, Chemistry, and Mathematics, while Paper 2 has questions from Mathematics, Aptitude, and Drawing.

2. How many times is JEE Mains conducted in a year?

JEE Mains is conducted twice a year - in January and April. Candidates can choose to appear for one or both of these sessions, and the best of the two scores will be considered for admission.

3. Is there negative marking in JEE Mains?

Yes, there is a negative marking of 1 mark for each incorrect answer in Paper 1. However, there is no negative marking for numerical value-based questions. Paper 2 does not have any negative marking.

4. What is the eligibility criteria for JEE Mains?

The eligibility criteria for JEE Mains is that the candidate must have passed their 10+2 examination with Physics, Chemistry, and Mathematics as compulsory subjects. They must also have secured a minimum of 75% marks (65% for SC/ST) or be in the top 20 percentile in their respective board exams.

5. Can I use a calculator in JEE Mains?

No, the use of a calculator or any other electronic device is not allowed during the JEE Mains examination. However, the virtual calculator provided on the computer screen can be used for calculations.

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