Question

Look at the question! Thanks :) (please explain)

Answer 1

Hi,
265+x+264+228=4*250
==> x+757=1000
==>x=1000-757
==>x=243
which is less than 250

Answer 2

Find the deviation they each hae from the mean
250+the deviations=x

265 is -15 less than 250
-15

264 is -14 less than 250
-14

228 is 22 less than 250
22

add them
-15-14+22=-7

250-7=243=x

it is less than 250

answer is A

value of x=243