Shreya Nair

Forum Replies Created

Viewing 5 posts - 16 through 20 (of 27 total)
1 2 3 4 5 6
  • Author
    Posts
  • May 30, 2020 at 12:56 pm in reply to: Number Theory #71895
    Shreya Nair
    Participant

    a3= 1010101 is a composite number with a factor '101'. If we consider the option d), it states that 10^(3+1) +1 is divisible by 11 which is not true. Hence option d) is incorrect.

    Option a) also gets eliminated as 3-2=1, is not divisible by 3.

    a4 is prime so option c) gets eliminated. Hence option b) is the correct answer.

    Hope it helps!!

    May 21, 2020 at 11:44 pm in reply to: Doubt #70890
    Shreya Nair
    Participant

    Thanks!

    May 18, 2020 at 9:38 pm in reply to: Limit to sin sum #70350
    Shreya Nair
    Participant

    May 18, 2020 at 9:37 pm in reply to: Limit to sin sum #70349
    Shreya Nair
    Participant

    May 18, 2020 at 9:50 am in reply to: theory of quadratics #70220
    Shreya Nair
    Participant

  • Author
    Posts
Viewing 5 posts - 16 through 20 (of 27 total)
1 2 3 4 5 6