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গোটৰ আকাৰ অনুপাত 2:3:5; তেওঁলোকৰ গোটৰ গড় 18,24,30। সংযুক্ত গাণিতিক গড় বিচাৰক।

A25.2
B25.8
C24.0
D26.4
Answer & Solution
Correct answer: B. 25.8
গোটৰ আকাৰ অনুসৰি ওজন কৰিলে (2 × 18 + 3 × 24 + 5 × 30) ÷ 10 = 25.8 পোৱা যায়।
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