Promedio en Contexto

Calculate the average of the following numbers: 10, 15, 20, 25, 30.

• 28

• 20

• 18

• 22

If the average score of a student in 4 tests is 85, what is the total score of the student?

• 400

• 340

• 320

• 360

A student scored 80, 85, and 90 in three tests. If the average score is 85, what should be the score in the fourth test to maintain the average?

• 92

• 88

• 80

• 85

In a class of 20 students, the average height is 150 cm. If the height of 19 students is known and the average is 155 cm, what is the height of the 20th student?

• 160 cm

• 145 cm

• 165 cm

• 140 cm

The average of 5 numbers is 12. If one number is 8, find the average of the remaining 4 numbers.

• 20

• 13

• 15

• 10

A student scored 70, 80, 90, and 100 in four tests. What is the average score of the student?

• 85

• 75

• 88

• 95

If the average of 6 numbers is 18 and the average of 4 of those numbers is 15, what is the average of the remaining 2 numbers?

• 22

• 20

• 24

• 12

The average of 4 numbers is 25. If one number is 30, what is the average of the remaining 3 numbers?

• 23.33

• 20.33

• 27.5

• 22.5

In a survey, the average age of 5 people is 30 years. If the average age of 4 of them is 32 years, what is the age of the fifth person?

• 28

• 22

• 34

• 25

Calculate the average of the following numbers: 5, 10, 15, 20, 25, 30.

• 15

• 10

• 18

• 22