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?
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1
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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