a crowbar of 2 meter is used to lift an object of 800N if the effort arm is 160cm , calculste the effort applied
1 answer:
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Answer:
33.33 %
Explanation:
given,
error last year = 63
error this year = 42
percent decrease in the error = ?
to find the percentage difference in the error formula used is
=
=
=
= 33.33 %
Percentage decrease in the number of error is equal to 33.33%.