allery30% જૂથનો 70% હિસ્સો સમગ્રના કેટલા ટકા થાય?
A18%
B21%
C24%
D27%
Answer & Solution
Correct answer: B. 21%
70% ને 30% વડે ગુણતાં સમગ્રના 21% મળે છે.
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