Question

By selling 36 bananas, a vendor loses the selling price of 4 bananas.Find his lost percent.

Answer 1

CP-SP=LOSS
CP - SP of 36 bananas= SP of 4 bananas
CP=SP of 40 bananas

let CP of 36 bananas be rs 100
then,SP of 40 bananas=rs 100
SP of 36 bananas=rs90


LOSS=rs 100- rs 90
=rs 10
LOSS%=rs10÷rs100×100%=10%

Answer 2

$\huge \purple{ \underline{ \boxed{ \red{ \mathbb{ANSWER : }}}}}$

$\red{ \textsf{Loss percentage = \orange{10 \% }}}$

$\huge \purple{ \underline{ \boxed{ \red{ \mathbb{EXPLANATION : }}}}}$

$\red{ \textsf{Let x be the price of a banana . }}$

$\green{ \mathbb{ACCORDING \: TO \: QUESTION :}}$

$\red { \textsf{Cost Price = 36x+4x = 40x}}$

$\red{ \textsf{Selling Price=36x}}$

$\red{\mathsf{Loss \: Percentage = \frac{Cost Price - Selling Price }{Cost Price} \times 100 }}$

$\red{\mathsf{Loss \: Percentage = \frac{4 \cancel{x}}{40 \cancel{x}} \times 100}}$

$\red{\mathsf{Loss \: Percentage = \frac{100}{10} }}$

$\red{ \colorbox{yellow}{\boxed{\mathsf{Loss \: Percentage = 10\%}}}}$