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Question: Answered & Verified by Expert
If the fractional part of the number 240315 is k15, then k is equal to
MathematicsBinomial TheoremJEE MainJEE Main 2019 (09 Jan Shift 1)
Options:
  • A 4
  • B 14
  • C 8
  • D 6
Solution:
2750 Upvotes Verified Answer
The correct answer is: 8
2403=23.24100 
=8.15+1100
=8100C015100+100C11599+....+100C9915+100C100
=8.15λ+1
=8.15λ+8
240315=8λ+815
Hence, k=8

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