A fruit seller had some mangoes. He sells 30% mangoes and still has 280 mangoes. Find the number of mangoes he had.
588 mangoes
400 mangoes
672 mangoes
700 mangoes
Explanation:
Suppose originally he had X mangoes.
Then, (100 - 30) % of X = 280
70/100 $\times$ X = 280
X = (280 $\times$ 100) / 70 = 400.