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38% of 4500-25% of ? = 1640A. 260B. 270C. 280D. 290 |
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Answer» Correct Answer - C `(4500xx38)/(100)-(?xx25)/(100)=1640` `rArr 1710-(?)/(4)=1640` `rArr (?)/(4)=1710-1640=70` `:. ?=4xx70=280` |
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