Question
Download Solution PDFবর্তমানে A হল B এর থেকে 8 বছরের ছোট। যদি 4 বছর আগে, তাদের বয়সের অনুপাত 1 ∶ 2 হয়, তাহলে B-এর বর্তমান বয়স (বছরে) কত?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFপ্রদত্ত:
A হল B এর থেকে 8 বছরের ছোট
4 বছর আগে, A এবং B এর বয়সের অনুপাত = 1 ∶ 2
গণনা:
ধরা যাক, A এর বর্তমান বয়স = x বছর
সুতরাং, B এর বর্তমান বয়স = (x + 8) বছর
তারপর, (x - 4)/[(x + 8) - 4] = 1/2
⇒ (x - 4)/(x + 4) = 1/2
⇒ 2x - 8 = x + 4
⇒ 2x - x = 8 + 4
⇒ x = 12
সুতরাং, B এর বর্তমান বয়স = 12 + 8 = 20 বছর
∴ B এর বর্তমান বয়স (বছরে) 20 বছর।
Last updated on Jun 13, 2025
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