Subject
Quantitative Aptitude
Topic
Age
Jully is now twice as old as Adnan. But 6 years ago, she was 5 times as old as he was. How old is Jully now?
Jully is now twice as old as Adnan. But 6 years ago, she was 5 times as old as he was. How old is Jully now?
ক)
10খ)
16গ)
20ঘ)
24Explanation
ধরি, বর্তমানে জুলির বয়স = j এবং আদনানের বয়স = a । প্রথম শর্ত অনুযায়ী, j = 2a দ্বিতীয় শর্ত অনুযায়ী, (j - 6) = 5(a - 6) অর্থাৎ, (j - 6) = 5a - 30 এখন, প্রথম সমীকরণ থেকে j = 2a বসালে, (2a - 6) = 5a - 30 বা, 2a - 6 = 5a - 30 বা, -3a = -24 বা, a = 8 সুতরাং, আদনানের বয়স = 8 বছর এখন, জুলির বয়স j = 2a = 2 × 8 = 16 বছরRelated questions
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