A fruit vendor sells apples at cost price but uses a false weight of 960 gm instead of 1 kg. What is his gain percent?
A$4\%$
B$4\frac{1}{6}\%$
C$4\frac{1}{4}\%$
D$5\%$
Answer & Solution
Correct answer: B. $4\frac{1}{6}\%$
He gives only 960 gm while charging for 1000 gm, so the error is 40 gm. Using the false-weight formula, $\text{Gain \%}=\frac{\text{Error}}{\text{True value}-\text{Error}}\times 100=\frac{40}{960}\times 100=4\frac{1}{6}\%$. Hence the gain is $4\frac{1}{6}\%$.
Related questions
The study of inequalities is described as useful in solving problems in science and:A firm needing at least 6 units and at most 10 would write that as a:Which sign makes a statement an inequality rather than an equation?Unless stated otherwise, inequalities in that chapter are solved over the set of:The set of all values of the variable that make an inequality true is called its:Solving 4x plus 3 less than 6x plus 7 gives:When x is a real number in that inequality, the solution set is written as:When x is an integer in that inequality, the largest solution is: