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Question
After taking 30 socks out of the dryer, Dina noticed that the ratio of blue socks to brown socks to black socks was 2:3:5. How many black socks were in the dryer?
21
15
9
None of these
ANSWER : 2
Descrption
<p>Blue, brown এবং black মোজার আনুপাতিক মানের যোগফল (2 + 3 + 5) = 10<br /> so black মোজার সংখ্যা = 30×<math xmlns = "http://www.w3.org/1998/Math/MathML"><mfrac><mn>5</mn><mn>10</mn></mfrac></math> = 15 টি</p>
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