Subject
Govt.Jobs
Topic
সিকিউরিটি প্রিন্টিং কর্পোরেশন লি. সহকারি ব্যবস্থাপক (সাধারণ)-২৬.১১,২০২১
The difference between the present ages of A and D is 14 years. Seven years ago, the ratio of their ages was 5 : 7 respectively. What is D's present age?
The difference between the present ages of A and D is 14 years. Seven years ago, the ratio of their ages was 5 : 7 respectively. What is D's present age?
ক)
56 yearsখ)
49 yearsগ)
58 yearsঘ)
45 yearsExplanation
মনে করি , 7 বছর পূর্বে A এর বয়স ছিল =5x বছর D " " ' =7x বছর অতএব ,বর্তমানে A এর বয়স =(5x+7)বছর " D " " =(7x+7) বছর প্রশ্নমতে ,(7x+7)-(5x+7) =14 বা,2x=14 বা, x =7 অতএব, D এর বর্তমান বয়স =7x+7 =49+7 =56 বছর।Related questions
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