Subject
Bank Exam
Topic
Bangladesh Bank (AD) - 12.11.2021
The average (arithmetic mean) of x and y is 20. If z = 5, what is the average of x, y, and z.
The average (arithmetic mean) of x and y is 20. If z = 5, what is the average of x, y, and z.
ক)
15খ)
12.5গ)
10ঘ)
25/3Explanation
এখানে , (x + y )/2=20 বা, x + y =40 ∴(x + y + z )/3= (40 + 5 )/3= 45/3=15Related questions
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