Subject
Bank Exam
Topic
Bangladesh Bank AD 2012
After replacing an old member by a new member, it was found that the average age of five members of a club is the same as it was 3 years ago. What is the difference between the ages of the old and the new member?
After replacing an old member by a new member, it was found that the average age of five members of a club is the same as it was 3 years ago. What is the difference between the ages of the old and the new member?
ক)
15 yrsখ)
8 yrsগ)
4 yrsঘ)
2 yrsExplanation
z= New member x=old member 4 member+ x member=sum 4 member+ 12+z=sum x=12+z x+3=15+z (x+3)-z=15Related questions
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