TS Police SI Prelims 2022 · Question 79

Question 79 of the TSLPRB SI Preliminary Written Test 2022 (7 August 2022). Try it first, then open the answer and explanation.

1. SI Prelims 2022 · Q79 · Reasoning & Mental Ability · Series & Analogies

   What should come in the place of question mark (?) in the following alpha-numeric series? B3E, C5G, E7K, G11M, ?

   1. M15Q
   2. K13O
   3. K13Q
   4. K15S

   క్రింది అక్షర సంఖ్యా శ్రేణిలో ప్రశ్న గుర్తు (?) స్థానంలో ఏది రావలసి ఉందో కనుక్కోండి ? B3E, C5G, E7K, G11M, ?

   1. M15Q
   2. K13O
   3. K13Q
   4. K15S
   Show answer

   Answer: (3) K13Q

   సమాధానం: (3) K13Q

   All three parts follow consecutive prime numbers: first letters B, C, E, G, K are positions 2, 3, 5, 7, 11; the numbers are 3, 5, 7, 11, 13; last letters E, G, K, M, Q are positions 5, 7, 11, 13, 17. So the next term is K13Q.

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