the average age of Raju rani rajini and ratna is 32 years .the average age of Raju and ratna is 30 years what is avarage age of rani and rajini
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1
Answer:
34
Step-by-step explanation:
let ages of raju be u, rajini j, Rani be n, ratna t
average of j,n,t,u =32
sum (j,n,t,u)= 4×32= 128
average of u,t =30
sum(t,u)=60
sum(j,n)=128-60=68
average of j,n = 68/2= 34
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