RRB NTPC Mains or Stage 2 Model Paper 9 with solutions

Question : 29 of 120

Marks: +1, -0

The average age of a group of 16 persons is 28 yrs and 3 months. Two persons each 58 yrs old left the group. The average age of the remaining persons is

Validate

Solution:

{16× 28 1 /4-2 ×58}/14=24

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