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David obtained 76, 65, 82, 67 and 85 marks (out in 100) in English, Mathematics, Physics, Chemistry and Biology.What are his average marks?
A. 65
B. 69
C. 72
D. 75

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GENPACT Other Question

A students was asked to find the arithmetic mean of the numbers 3, 11, 7, 9, 15, 13, 8, 19, 17, 21, 14 and x. He found the mean to be 12. What should be the number in place of x?
A. 3
B. 7
C. 17
D. 31
Distanc e between two stations A and B is 778 km. A train covers the journey from A to B at 84 km per hour and returns back to A with a uniform speed of 56km per hour. Find the average speed of the train during the whole journey?
A. 67.0 km /hr
B. 67.2 km /hr
C. 69.0 km /hr
D. 69.2 km /hr