30% of a number is 120. Which is the number ?A300B500C400D450Answer: C. 400Read Explanation:Let the number be X30 % X =12030100X=120\frac{30}{100}X = 12010030X=12030X=120×10030X=120\times{100}30X=120×100X=120×10030X=\frac{120\times{100}}{30}X=30120×100X=400X=400X=400Hence the Number is 400 Open explanation in App