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Percentage

Q1:
A student multiplied a number by 3 instead of 5 .
5 3
What is the percentage error in the calculation?

A 34%

B 44%

C 54%

D 64%

ANS:D - 64%

Let the number be x.

Then, error = 5 x - 3 x = 16 x.
3 5 15
Error% = 16x x 3 x 100 % = 64%.
15 5x



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