Question

A man lost 10% by selling oranges at the
rate of 11 for a rupee. How many a rupee
should he sell them to gain 10%?
A
12 please
all should give currect answer​

Answer 1

Question :-A man lost 10% by selling orange's at the rate of 11 for a rupee,how many a rupee should be sell them to gain 10% ?

→ SP of 1 Orange = $\frac{1}{11}$

→ Since he makes a loss of 10%, the CP is:

CP = $\frac{100}{(11 × 90)}$ = $\frac{10}{99}$

→ To make a profit of 10%, SP should be :

$\frac{10}{99}$ × $\frac{110}{100}$ = $\frac{11}{99}$ = $\frac{1}{9}$ Orange.

⟹ He must sell 9 oranges a rupee.