RRB RPF RPSF SI and CONS Model Papers 1 with solutions

Question : 8 of 120

Marks: +1, -0

The average of 50 numbers is 38. If two numbers namely 45 and 55 are discarded, the average of the remaining numbers is :

Solution:

(d) New average

= { 38× 50 - 45 - 55 } /{ 48 }

= { 1800 }/ { 48 } = 37.5

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