APPSC Group-I Prelims 2024 Paper II · Question 1

Question 1 of the APPSC Group-I Prelims 2024 Paper II (17 March 2024). Try it first, then open the answer and explanation.

1. Prelims 2024 · P-II · Q1 · Mental Ability & Reasoning · Numbers & Series

   If 808 × 8008 × 80008 = A and the sum of all the digits in the A is M, what will be the value of √M?

   1. 8
   2. 12
   3. 0
   4. 4

   808 × 8008 × 80008 = A మరియు A లోని అన్ని అంకెల మొత్తం M అయితే. √M యొక్క విలువ ఎంత అవుతుంది ?

   1. 8
   2. 12
   3. 0
   4. 4
   Show answer

   Answer: (1) 8

   సమాధానం: (1) 8

   808 × 8008 × 80008 = 512 × 101 × 1001 × 10001 = 512 × 1011111101 = 517688883712, whose digit sum M = 64. Hence √M = 8.

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