দুটি সংখ্যার অনুপাত 3 : 4 এবং তাদের ল.সা.গু 480 হলে, সংখ্যা দুটির গ.সা.গু নির্ণয় করুন?

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RRB NTPC CBT 2 (Level-3) Official Paper (Held On: 14 June 2022 Shift 1)
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  1. 30
  2. 40
  3. 160
  4. 120

Answer (Detailed Solution Below)

Option 2 : 40
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প্রদত্ত:

দুটি সংখ্যার অনুপাত 3 : 4

তাদের ল.সা.গু 480

অনুসৃত ধারণা:

দুটি সংখ্যার গুণফল = গ.সা.গু × ল.সা.গু

গণনা:

মনেকরি সংখ্যাদুটি হল 3x এবং 4x  

এখানে x দুটি সংখ্যার গ.সা.গু

এখন,

3x × 4x = 480 × x

⇒ 12x 2 = 480x

⇒ x = 40

সুতরাং, সংখ্যার গ.সা.গু = 40

তাদের গ.সা.গু হল 40

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