24, 42 आणि 56 चा लसावि शोधा.

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RRB Group D 1 Sept 2022 Shift 1 Official Paper
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  1. 618
  2. 816
  3. 168
  4. 186

Answer (Detailed Solution Below)

Option 3 : 168
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दिलेल्याप्रमाणे:

24,42,56 दिलेल्या संख्या आहेत

वापरलेली संकल्पना:

लसावि कोणत्याही दोन किंवा अधिक दिलेल्या पूर्णांकांपैकी किमान सामान्य विभाजक किंवा गुणक दर्शवितो.

लसावि शोधण्याची एक पद्धत : घातांक वापरून मुख्य घटकीकरण.

  • दिलेल्या प्रत्येक संख्येचे सर्व मूळ अवयव शोधा.
  • सापडलेल्या सर्व अविभाज्य संख्यांची यादी करा, जितक्या वेळा ते कोणत्याही एका संख्येसाठी येतात.
  • लसावि शोधण्यासाठी अविभाज्य अवयवांची यादी एकत्र गुणा.

गणना:

 24,42,56 चा लसावि 

⇒ 24 चे अवयव  = 3 × 2 × 2 × 2 

⇒ 42 चे अवयव = 7×3×2

⇒ 56 चे अवयव = 7 × 2 × 2 × 2  

आता, सर्व मूळ अवयवांच्या सर्वोच्च घातांचा गुणाकार लसावि असेल

⇒ 2×  7×  31  =  168 .

म्हणून, 24,42,56 चा लसावि 68 आहे.

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