Practice30Create account

The mean of 3, 7, 9, 13 and one more number is 9. The fifth number is:

Class 9Measures of Central TendencyStatistics and Probability
  • A14
  • B26
  • C12
  • D13

Step-by-Step Solution

Total of 5 numbers = . Known four sum = 3+7+9+13 = 32. Fifth = 45 - 32 = 13.
Answer: D) 13

Master this chapter in 30 minutes a day.

Don't just memorise the answer — build a daily practice habit.

Practice 5 Similar Questions Free →

All Measures of Central Tendency practice questions

More Class 9 Measures of Central Tendency practice

The mean monthly salary of 10 employees in a Mumbai office is Rs 24,000. A new employee…A teacher found the mean of 20 numbers to be 30. Later it was discovered that one number…In a class of 40 students, the mean weight of 25 boys is 50 kg and the mean weight of 15…Priya scored 78, 85, 90, 67 and 80 marks in five subjects. What is the least mark she…A shopkeeper records the number of breads sold each day for a week (7 days): 34, 30, 28,…