Anil started a business with an investment of $Rs.\,25,000.$ After $3\, months,$ Vishal joined his business with a capital of $Rs.\, 30,000$. At the end of the $year,$ they have made a profit of $Rs.\, 19,000$ what will be Anil's share in the profit? (in $Rs.$)

Mohan buys a watch for $Rs.\,350$ and sells it for $Rs.\,392.$ Find out his percentage of profit.

The price of a $T V$ is $Rs.\, 10,000 .$ If successive discount of $15 \%, 10 \%$ and $5 \%$ allowed. Then at what price does a customer buy in $Rs.$?

A merchant buys $4000\, kg$ of wheat, one$-$fifth of which he sells at a gain of $5$ per cent, one$-$fourth at a gain of $10 \%$, one-half at a gain of $12$ percent, and the remainder at a gain of $16$ percent. If he had sold the whole at a gain of $11$ percent, he would have made $Rs.\, 72.80$ more. What was the cost price of the crop per kg? (in $Rs.$)

Suresh buys a camera for $Rs.\,1800$ and sells it at $10 \%$ loss. Find out its selling price. (in $Rs.$)

List price of a book is $Rs.\,100.$ A dealer sells three such books for $Rs.\, 274.50$ after allowing discount at a certain rate. Find the rate of discount in $\%$