IIT JEE 1982 Maths - 'Adapted' - Subjective to Multi-Correct Q10

Algebra Level 2


For f(n)f(n) as defined above, which of the following options are correct?

  • A: f(10)=2f(10)=2
  • B: f(15)=3f(15)=3
  • C: f(20)=4f(20)=4
  • D: f(25)=5f(25)=5

Enter your answer as a 4-digit string of 1s and 9s - 1 for correct option, 9 for wrong. For example: if A and B are correct, and C and D are incorrect, enter 1199. None, one or all may also be correct.

In case you are preparing for IIT JEE, you may want to try IIT JEE 1982 Mathematics Archives.

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