Subject
Bank Exam
Topic
Dutch-Bangla Bank Ltd. - Probationary Officer - 2017
At present Apu is 23 years old and Babu is 15 years old. How many years ago was Apu twice as old as Babu ?
At present Apu is 23 years old and Babu is 15 years old. How many years ago was Apu twice as old as Babu ?
ক)
7খ)
8গ)
9ঘ)
NoneExplanation
Solution: প্রশ্নে বলা হচ্ছে, বর্তমানে অপুর বয়স 23 বছর এবং বাবুর বয়স 15 বছর । কত বছর পূর্বে অপুর বয়স বাবুর বয়সের দ্বিগুণ ছিল ? ধরি, x বছর পূর্বে অপুর বয়স বাবুর বয়সের দ্বিগুণ ছিল । প্রশ্নমতে, 23 - x = 2(15 - x) => 23 - x = 30 - 2x => -x + 2x = 30 - 23 x = 7Related questions
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