A shopkeeper sells $20$ pencils for the same amount of money as he paid for $25$ pencils. What is his gain percent?

The marked price of a tape recorder is $Rs.\, 12,600$. A festival discount of $5 \%$ is allowed on it. Further for cash payment, a second discount of $2 \%$ is given. The cash payment, in rupees, is to be made for buying it is

A shopkeeper sold an article offering discount of $24 \%$ and earn a profit of $23.5 \% .$ What would have been the percentage of profit earned if no discount has been offered?

A fair price shopkeeper takes $10 \%$ profit on his goods. He lost $20 \%$ goods during theft his loss $\%$ is

A person bought a horse and a carriage for $Rs.\,20000.$ Later, he sold the horse at $20 \%$ profit and the carriage at $10 \%$ loss. Thus, he gained $2 \%$ in the whole transaction. The cost price of the horse was (in $Rs.$)

A man purchased some eggs at $3$ for $Rs.\, 5$ and sold them at $5$ for $Rs.\, 12 .$ Thus, he gained $Rs.\, 143$ in all. The number of eggs he bought is