1100 boys and 700 girls are examined in a test; 42% of the boys and 30% of the girls pass. The percentage of the total who failed is : Options
A) 62 *2/0 B) 62 *2/3 C) 62 *2/6 D) 62 *2/2 E) 62 *2/1
Explanation:   Total number of students = 1100 + 700= 
<gadget id="calculator">1100 + 700</gadget>
<output>1_800</output>
1800.   Number of students passed= (42% of 1100 + 30% of 700) - (462 + 210) = 672.   Number of failues = 1800-672= 
<gadget id="calculator">1800-672</gadget>
<output>1_128</output>
1128.   Percentage failure= (1128/1800 * 100 )% = 62 * 2/3 %.   Answer: 62 *2/3) 62 *2/3
<result>B</result>
1100 boys and 700 girls are examined in a test; 42% of the boys and 30% of the girls pass. The percentage of the total who failed is :