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IBPS Clerk Prelims Model Paper 11
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© examsnet.com
Question : 31
Total: 100
A student multiplied a number by 11/13 instead of 13/11. What is the percentage error in the calculation?
39.67 percent
28.4 percent
14.2 percent
19.83 percent
None of these
Validate
Solution:
Let the number be x.
% error =
13
11
x
−
11
13
x
13
11
x
×
100
%
=
48
11
×
13
x
13
11
x
×
100
%
=
48
x
×
11
11
×
13
×
13
×
100
%
=
4800
169
%
= 28.4 %
© examsnet.com
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