A sales boy gave a change of N68 instead of N72. Calculat...
A sales boy gave a change of N68 instead of N72. Calculate his percentage error
4%
559%
51517%
7%
Correct answer is B
% error = erroractual value×100
error = N72 - N68 = 4
actual value = N72
%error = 472×100
= 10018=509 = 559%
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