alleryএটা 40 kg-ৰ মিশ্ৰণত A, B, C, D 5 : 9 : 4 : 2 অনুপাতত আছে। B-ৰ পৰিমাণ হ'ল
A16 kg
B18 kg
C20 kg
D9 kg
Answer & Solution
Correct answer: B. 18 kg
20 অংশৰ ওজন 40 kg, গতিকে এক অংশ হ'ল 2 kg আৰু B হ'ল 9 x 2 = 18 kg।
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