Question

a dealer sold a camera for ₹1080 gaining 1/8 of its cost price. Find (1) the cost price of the camera, and (2) the gain per cent earned by the dealer ​

Answer 1

Answer:

Suppose cost price is CP Rs.

&

Selling price = SP Rs.

\textbf{Since Selling Price is 1080 Rs.,}Since Selling Price is 1080 Rs.,

SP = 1080 Rs.

Dealer gained 1/8 of cost price.

=> \textbf{SP = CP + Gain on CP}SP = CP + Gain on CP

=> SP = CP + (1/8)CP

=> CP + CP/8 = 1080

=> (9CP)/8 = 1080

=> CP = (1080×8)/9

=> CP = 120 × 8

=> CP = 960 Rs.

\textbf{Total gain = SP - CP}Total gain = SP - CP

=> Total gain = 1080 - 960

=> \textbf{Total gain = 120 Rs}Total gain = 120 Rs

\textbf{Gain Percent=(Total gain/CP)(100) }Gain Percent=(Total gain/CP)(100) %

=> Gain percent = (120/960) × 100

=> Gain percent = 100/8

=> Gain percent = 12.5 %

\textbf{Cost Price = Rs 960}Cost Price = Rs 960

\textbf{Gain Percentage = 12.5}Gain Percentage = 12.5 %

Explanation:

hope it may helps u...