allery30% సమూహంలో 70% వాటా మొత్తం మీద ఎంత శాతం అవుతుంది?
A18%
B21%
C24%
D27%
Answer & Solution
Correct answer: B. 21%
70% ని 30% తో గుణించగా మొత్తంలో 21% వస్తుంది.
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