Question

Choose the correct opción The average age of 40% of those attending a meeting is 40 years old. The average of 25% of the rest is 28 years old, what should be the average of the rest of the people. If all the attendees on average are 31 years old?

A) 28

B) 25

C) 26

D) 24

E) 22​

Answer 1

Respuesta:

es la B

Explicación:

KSKSKD

D

S

S

SSJZ

S

S

S

S

S

D