TS Police SI Mains 2023 Paper 3 · Question 29

Question 29 of the TSLPRB SI Final Written Examination 2023, Paper III (Arithmetic & Reasoning) (8 April 2023). Try it first, then open the answer and explanation.

1. SI Mains 2023 Paper III · Q29 · Arithmetic · Ratio, Average & Ages

   If a : b = 3 : 5, c : d = 4 : 7, b : c = 2 : 3 then d : c : b : a =

   1. 24 : 40 : 60 : 105
   2. 7 : 4 : 3 : 5
   3. 5 : 3 : 4 : 7
   4. 105 : 60 : 40 : 24

   ఒకవేళ a : b = 3 : 5, c : d = 4 : 7, b : c = 2 : 3 అయితే d : c : b : a =

   1. 24 : 40 : 60 : 105
   2. 7 : 4 : 3 : 5
   3. 5 : 3 : 4 : 7
   4. 105 : 60 : 40 : 24
   Show answer

   Answer: (4) 105 : 60 : 40 : 24

   సమాధానం: (4) 105 : 60 : 40 : 24

   Make b common: a : b = 6 : 10 and b : c = 10 : 15, so a : b : c = 6 : 10 : 15 = 24 : 40 : 60; with c : d = 4 : 7 = 60 : 105, a : b : c : d = 24 : 40 : 60 : 105. Reversed, d : c : b : a = 105 : 60 : 40 : 24 (option (1) is a : b : c : d, not the order asked).

   b ని ఉమ్మడిగా చేస్తే: a : b = 6 : 10 మరియు b : c = 10 : 15, కాబట్టి a : b : c = 6 : 10 : 15 = 24 : 40 : 60; c : d = 4 : 7 = 60 : 105 తో, a : b : c : d = 24 : 40 : 60 : 105. దీనిని తిరగరాస్తే d : c : b : a = 105 : 60 : 40 : 24 (ఐచ్ఛికం (1) a : b : c : d, అది అడిగిన క్రమం కాదు).

Answer it in the practice appMake a topic-wise quiz