TS Police Constable Prelims 2022 · Question 104

Question 104 of the TSLPRB Police Constable Preliminary Written Test 2022 (28 August 2022). Try it first, then open the answer and explanation.

1. PC Prelims 2022 · Q104 · Reasoning & Mental Ability · Series & Analogies

   Select the suitable alternative to replace '?' which completes the following series. 2, 4, 7, 12, 19, 30, ?

   1. 43
   2. 39
   3. 35
   4. 45

   క్రింది శ్రేణిని పూర్తి చేయడానికి సరియైన ఐచ్ఛికాన్ని ఎన్నుకొని '?' ను భర్తీ చేయండి. 2, 4, 7, 12, 19, 30, ?

   1. 43
   2. 39
   3. 35
   4. 45
   Show answer

   Answer: (1) 43

   సమాధానం: (1) 43

   The differences are 2, 3, 5, 7, 11, i.e. consecutive prime numbers, so the next difference is 13 and the missing term is 30 + 13 = 43.

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