40% आणि 20% च्या क्रमागत सूटच्या समतुल्य एकल सूट किती आहे?

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RRB Technician Grade III Official Paper (Held On: 29 Dec, 2024 Shift 1)
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  1. 55% 
  2. 50% 
  3. 60% 
  4. 52%

Answer (Detailed Solution Below)

Option 4 : 52%
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दिलेल्याप्रमाणे:

40% आणि 20% च्या क्रमागत सूटच्या समतुल्य एकल सूट

वापरलेले सूत्र:

एकल सूट =1 - (1 - d1) × (1 - d2)

गणना:

एकल सूट = 1 - (1 - 0.40) × (1 - 0.20)

⇒ एकल सूट = 1 - 0.60 × 0.80

⇒ एकल सूट = 1 - 0.48

⇒ एकल सूट = 0.52 = 52%

∴ योग्य उत्तर पर्याय (4) आहे.

Alternate Method 

 

एकल सूट = D1 + D2 - (D× D2)/100

⇒ 40 + 20 - 40 × 20 /100 = 60 - 8 = 52%

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