Question

The Average marks obtained by 60 students in a SSLC examination is 18. If the average marks of passed students are 19 and that of failed students are 7, what is the number of students who passed the examination?

• A. 33
• B. 44
• C. 55
• D. 66

Answer 1

Answer:

C. 55

Let the number of passed students be a Then total marks =>60 x 18= 19 a + (60 – a)* 7 1080 =19a + 420 - 7a 1080 - 420 = 19a - 7a 660 = 12a a = 660/12 a = 55