Subject
Bank Exam
Topic
বাংলাদেশ ব্যাংক (সহকারী পরিচালক) - ২৮.১০.২০২২
If the numerator of a fraction is increased by 2 and the denominator by 1 it becomes 1. Again, if the numerator decreased by 4 and the denominator by 2 it becomes 1/2. Find the fraction.
If the numerator of a fraction is increased by 2 and the denominator by 1 it becomes 1. Again, if the numerator decreased by 4 and the denominator by 2 it becomes 1/2. Find the fraction.
ক)
4/5খ)
5/6গ)
6/7ঘ)
7/8Explanation
মনে করি , ভগ্নাংশটির লব =x এর হর =y ভগ্নাংশটি =x/y প্রশ্নমতে , (x+2)/(y+1)=1 বা,x+2=y+1 বা,x=y+1-2 বা,x=y-1 ...(i) আবার , (x-4)/(y-2)=1/2 বা,2x-8=y-2 বা,2(y-1)-8=y-2 বা,2y-2-8-y+2=0 বা,y-8=0 বা,y=8 (i) x=8-1=7 ভগ্নাংশটি =7/8Related questions
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