70% of a number is 644. What is 30% of that number? 

(a) 274 (b) 302 (c) 252 (d) 328 (e) None of these

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1 Answers

(e) x x 70/100= 644

Number= 644 x 100/70

30% of number = 644 x 100/70 x 30/100 = 276

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