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On a given day a petrol station serves three as many men as women Two types of petrol are available, grade A and grade B Customers pay by check or by cash 70% of the men and 40% of the women buy

On a given day a petrol station serves three as many men as women. Two types of petrol are available, grade A and grade B. Customers pay by check or by cash. 70% of the men and 40% of the women buy grade A petrol. of the men buying grade A petrol, 805 pay by check, and of the men buying grade B petrol, 60% pay by check. Of the women buying grade A petrol, half pay by check and of the women buying grade B petrol, 40% pay by check. Find the probability that (i) a customer buys grade A petrol.(ii) a customer buys by check (iii) a woman customer buys by check(iv) a customer who pays by check for grade A petrol is a man.

Apr 03 2020 View more View Less

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