In a class of 1500 students, the percentage of girls is 30%. If 80% of the boys failed the examination, find the number of boys who passed in the examination.

630 210 550 840

210

70% = \(\frac{7}{10}\) & 20% = \(\frac{1}{5}\)  Number of boys  = 70% of 1500 = \(\frac{7}{10}\) × 1500 = 1050 As , 80% of boys failed the examination Number of Passed boys = 20% of 1050 =  \(\frac{1}{5}\) × 1050 = 210