Question

if students multiplied by 7/12 instead if 11/16. find the % error in the calculation
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Answer 1

Step-by-step explanation:

% of error = |actual-error| /actual ×100

actual-error = 11/16 - 7/12 = 33-28/48 = 5/48

%of error = 5/48 ÷ 11/16 ×100 = 5/48 × 16/11 ×100

= 5/33 ×100 = 15.15%

Answer 2

The percentage of error in calculation will be 15.15%

GIVEN: The students multiplied by 7/12 instead of 11/16.
TO FIND % error in the calculation.

SOLUTION;

As we are given in the question,

The students multiplied 7/12 instead of 11/16

That means,

When it was supposed to be 11/16 they by a mistake and took it to be 7/12.

As we already know,

% of error = |actual error| /actual ×100

Actual error = 11/16 - 7/12

Actual error = 33-28/48

Actual error = 5/48

Therefore,

% of error = 5/48 ÷ 11/16 ×100

% of error = 5/48 × 16/11 ×100

% of error = 5/33 ×100

% of error = 15.15%

Therefore,

The percentage of an error made by students will be 15.15%

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