Subject
Bank Exam
Topic
পূবালী ব্যাংক লিমিটেড (সিনিয়র অফিসার) - ৩০.০৯.২০২৩
Two numbers are in the ratio 3 : 5. If 9 is subtracted from each, the new numbers are in the ratio 12 : 23. the smaller number is:
Two numbers are in the ratio 3 : 5. If 9 is subtracted from each, the new numbers are in the ratio 12 : 23. the smaller number is:
ক)
27খ)
33গ)
49ঘ)
55Explanation
মনেকরি, ছোট সংখ্যাটি = 3x বড় সংখ্যাটি = 5x প্রশ্নমতে, (3x - 9)/(5x - 9) = 12/23 ⇒ 23(3x - 9) = 12(5x - 9) ⇒ 69x - 207 = 60x - 108 ⇒ 69x - 60x = 207 - 108 ⇒ 9x = 99 ⇒ x = 11 ∴ ছোট সংখ্যাটি = 3 × 11 = 33Related questions
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