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QJEEM20Ma3e42: JEE Main 2020 Mathematics - Class 11 JEEM20Ma3e42 Solution: There are 3 sections in a question paper and each section…

There are 3 sections in a question paper and each section contains 5 questions. A candidate has to answer a total of 5 questions, choosing at least one question from each section. Then the number of ways, in which the candidate can choose the questions, is :

Multiple Choice Options

  • A 2250
  • B 2255
  • C 3000
  • D 1500

Step-by-Step Verified Solution

JEE Main 2020 (Online) 5th September Evening Slot Mathematics - Permutations and Combinations Question 130 English Explanation

∴ Total number of selection of 5 questions

= (5C1.5C2.5C2)×3 + (5C1.5C1.5C3) × 3

= 5 ×10×10×3 + 5×5×10×3

= 2250

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