Performance of candidates from TN on Average problems
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Problem:
Average of 6
numbers is 8.
If each of
the numbers is reduced by 2. Then the new number would be what?
Step1:
Given:
Average age
of 6 Nos 8
Step 2: To
find:
a) The total
of 6 numbers
Less 2 from each
of the 6 nos:
Step 3: Formula
to be used:
Ave= Sum of
all qty/ no of qty.
Step 4:
Working:
a) First
find the total of all the 6 Nos: ie 6 x 8 = 48
b) Since each
of the six numbers has to be reduced by 2 we get
6 x 2 = 12
c) The total
of 6 number sis 48
Less 12
= Total of 6
numbers after reduction
Hence
the total would be
48-12 = 36
Step 5:
Answer
Therefore
the total of 6 numbers is 36.
out of 7 only 2 could do this problem correctly
Basic mistake
understanding the word problem
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