The bar chart above shows the number of visitors received...
The bar chart above shows the number of visitors received in a week. How many visitors were received on Friday, Tuesday and Sunday?
17
22
20
16
Correct answer is D
No of visitors = 10 + 5 + 1 = 16
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P={2, 1,3, 9, 1/2}; Q = {1,21/2,3, 7} and R = {5, 4, 21/2}. Find P∪Q∪R ...