Direction: Answer the following questions from data mentioned in caselet.

Three banks A, B and C started their smart application services together in month of March, 2020. 25% customers of Bank A, 35% of Bank C and 20% customers of Bank B registered themselves for the applications. Number of customers in Bank C is 1.5 times than Bank A and number of customers in Bank A is 50,000 more than Bank B. Number of customers in bank A is 300,000. It should also be noted that Bank B has 10% of its registered customers as common with bank C. Ratio of common registrations between bank B with bank C to Bank A with bank B is 1 : 3. Bank A and C have 20,000 common registrations. From the total customers of all three banks, 2% have registered on smart application with all three banks. It should be noted that the data of common registrations are only between two banks mentioned hence the third bank is excluded.