The average of 9 numbers is 40 If the average ofthe first five numbers is 38 and that of the last fi...........

Quantitative Aptitude (CGL) Average

The average of 9 numbers is 40. If the average ofthe first five numbers is 38 and that of the last five is 50, then what is the fifth

number?

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SSC CGL 10 June 2019 Shift-1

Sum of 9 numbers = 9 × 40 = 360
Sum of 1st five numbers = 5 × 38 = 190
Sum of last five numbers = 5 × 50 = 250
Fifth number = (250+190)-360=80

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