In class X there are two sections in the School. In section A there are 40 students and in section B there are 60 students. The pass percentages of sections A and B are 70% and 60%. The pass percentage of whole class will be:

64%

Passed students of section A = 70% of 40 = 28

Passed students of section B = 60% of 60 = 26 

Total passed students of class X = 28 + 36 = 64

Passed percentage of class x = \(\frac{64}{100}\) = 64%

The correct answer is Option (3) → 64%