What is the value of x, if 25% of 480 + 30% of 500 + x% of 90 = 35% of 900 ?
Answer & explanation
Correct answer: option 2
According to question ,
25% of 480 + 30% of 500 + x% of 90 = 35% of 900
\(\frac{1}{4}\) × 480 + \(\frac{3}{10}\) × 500 + \(\frac{x}{100}\) × 90 = \(\frac{35}{100}\) × 900
120 + 150 + \(\frac{9x}{10}\) = \(\frac{7}{20}\) × 900
120 + 150 + \(\frac{9x}{10}\) = \(\frac{7}{20}\) × 900
270 + \(\frac{9x}{10}\) = 315
x = 50