A student multiplied a number by 3/5 instead of 5/3, what is the percentage error in the calculation ?
Answers
Answered by
6
let the number be x
now ,
error no. =3/5x
original no. =5/3x
so error %= 5/3x-3/5x ÷5/3x
=64%
Answered by
1
Step-by-step explanation:
Let the number be x
now,
original no.
=> 5/3 × x
=> 5x/3
error no.
=> 3/5 × x
=> 3x/5
So error %
=> 5x/3 - 3x/5 ÷ 5x/3
=> 25x - 9x /15 ÷ 5x/3
=> 16x/15 ÷ 5x/3
=>
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