কাস্টমস, এক্সাইজ ও ভ্যাট কমিশনারেট, ঢাকা || সিপাই (11-03-2022) || 2022
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Created:
4 weeks ago
|
Updated:
8 hours ago
Created:
4 weeks ago
|
Updated:
8 hours ago
দেয়া আছে, আয়তাকার ঘনবস্তুর দৈর্ঘ্য a = ৭.৫ সেন্টিমিটার; প্রস্থ b = ৬ সেন্টিমিটার এবং উচ্চতা c = ৪ সেন্টিমিটার
আমরা জানি, আয়তাকার ঘনবস্তুর সমগ্রতলের ক্ষেত্রফল = 2(ab + bc + ca) বর্গ একক
= ১৯৮ বর্গ সেন্টিমিটার।
Created:
4 weeks ago
|
Updated:
8 hours ago
ধরি, ১০ বছর পূর্বে পিতার বয়স ছিল ৪x বছর
এবং পুত্রের বয়স ছিল x বছর।
∴ বর্তমানে পিতার বয়স = (৪ x + ১০) বছর
এবং বর্তমানে পুত্রের বয়স = (x + ১০) বছর
প্রশ্নমতে,
অর্থাৎ পিতার বর্তমান বয়স বছর ।
এবং পুত্রের বর্তমান বয়স বছর।
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