For the given class of 90-120, the class mark is ______ .
Choose the correct answer in each of the following questions: The class mark of the class 100-120 is (a) 100 (b) 110 (c) 115 (d) 120
Question 1 The class mark of class 90 - 120 is: A) 90 B) 105 C) 115 D) 120