For a research purpose 2500 individuals were interviewed. Among them 750 persons have bank accounts in State Owned Commercial Banks (SOCBS) and 2250 persons have bank accounts in Private Commercial Banks (PCBs). How many of them have bank accounts in both SOCBS and PCBs?
Created: 5 months ago |
Updated: 4 months ago
best des
n(A or B )= n(A)+n(B) - n(both)
2500= 750+2250- n(both)
So, n(both)= 500
Ans: 500
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