the average age of 120 members of a society is 60.7 years. by addition of 30 new members the average age becomes 56.3 years. what is the average age (in years) of newly joined members?
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let, average age of new members be x years
atq
60.7*120+30x=56 3*150
30x=8445-7284
x=1161/30=38.7 y
please Mark as a brainliest answer
atq
60.7*120+30x=56 3*150
30x=8445-7284
x=1161/30=38.7 y
please Mark as a brainliest answer
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