1.

The marks obtained by a student are as follows: 67, 53, 21, 68, 90 and 43. While calculating the average it was found that the average had decreased by 2 and that 53 has been misread. What is the correct reading?

Answer»

Answer:

41-is the CORRECT reading

Step-by-step explanation:

Misread AVERAGE =

6

67+53+21+68+90+43

=57

Actual Average =

6

67+21+68+90+43+x

=55

=

6

289+x

=55

x=41 correct reading

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