10, 4, 1, 15, 15, x, 12 आणि 14 या संख्यांचा मध्य 10 असल्यास x चे मूल्य शोधा.

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RRB ALP Fitter 23 Jan 2019 Official Paper (Shift 1)
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  1. 7
  2. 8
  3. 9
  4. 10

Answer (Detailed Solution Below)

Option 3 : 9
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दिलेले आहे:

10, 4, 1, 15, 15, x, 12 आणि 14 चा मध्य = 10 

वापरलेले सूत्र:

संचाचा मध्य = संख्यांची बेरीज / एकूण संख्या

गणना:

सरासरी = 10

⇒ (10 + 4 + 1 + 15 + 15 + x + 12 + 14)/8 = 10

⇒ (71 + x)/8 = 10

⇒ 71 + x = 80

⇒ x = 80 - 71 = 9

अशाप्रकारे, x = 9

∴ योग्य उत्तर पर्याय (3) आहे.

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