Question

Manav bought a scientific calculator for rupees 7000. he sold it to Sahil at a 5% profit. again sahil sold the calculator to Karan at a 5% loss. find the price at which Karan bougth the calculator​

Answer 1

Step-by-step explanation:

Manva bought a scientific calculator at ₹7000

▪︎Manav sold to Sahil at 5% profit

▪︎Sahil sold to Karan at 5% loss

To find :

At how much does the Karan bought tha calculator

Taken :

To find at how much Karan bought the calculator use this formula -:

\boxed{\rm{M=\dfrac{100\%-(5\%-5\%)}{100\%}\times7000}}

M=

100%

100%−(5%−5%)

×7000

Where,

M = Money Karan bought the calculator

Solution :

:\implies\rm{M=\dfrac{100\%-(5\%-5\%)}{100\%}\times7000}:⟹M=

100%

100%−(5%−5%)

×7000

:\implies\rm{M=\dfrac{100\%}{\cancel{100\%}}\times\cancel{7000}}:⟹M=

100%

100%

×

7000

:\implies\rm{M=100\%\times70}:⟹M=100%×70

:\implies\rm{M=Rs.7000}:⟹M=Rs.7000

So , Karan bought the calculator at ₹7000