SSC CPO SI and ASI Model Paper 3

Question : 148 of 200

Marks: +1, -0

The average marks of 30 students are 20. The average marks of the first 15 students are 19 and the last 14 students are 22. Find out the marks of the 16th student.

Validate

Solution:

(1) Marks of

16^t^h

student= (30×20) – (15×19) – (14×22)[Hint : Marks of

16^t^h

student = Totalmarks – sum of first 15 students –sum of last 14 students.]= 600 – 285 – 308 = 7

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