1 . The average of 20, 70 and x is 40. If the average of 20, 70, x and y is 50, then y =?
- A. 100
- B. 80
- C. 70
- D. 60
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1 . The average of 20, 70 and x is 40. If the average of 20, 70, x and y is 50, then y =?
View Answer | Discuss in Forum | Workspace | Report |