Average MCQs
Practice free Average multiple-choice questions with instant answer feedback and step-by-step solutions. Click an option to check yourself, reveal the full explanation, and work through all 516 questions — no login required.
Question 145easy
If 25a + 25b = 115, what is the average of a and b?
Question 146easy
The average of two numbers is XY. If one number is X, the other is-
Question 147easy
The average weight of a class of 24 students is 35 kg. If the weight of the teacher be included, the average rises by 400 g. The weight of the teacher is -
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Question 148easy
The average age of an adult class is 40 years. 12 new students with an average age of 32 years join the class, thereby decreasing the average by 4 years. The original strength of the class was-
Question 149easy
The average of the first five multiples of 3 is-
Question 150easy
The average of X1, X2 and X3 is 14. Twice the sum of X2 and X3 is 30. What is the value of X1?
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Question 151easy
The average sale of car dealership was 15 cars per week. After a promotional scheme the average sale increased to 21 cars per week. The percentage increased in the sale of cars was-
Question 152easy
The average age of the mother and her six children is 12 years which is reduced by 5 years if the age of the mother is excluded. How old is the mother ?
Question 153easy
The average age of the boys in a class is 16 years and that of the girls is 15 years. The average age for the whole class is-