An article is sold for $Rs.\,4950$ at a gain of $10 \% .$ What would have been the gain or loss per cent if it had been sold for $Rs$ $4275 ?$

If the selling price of $40$ articles is equal to the cost price of $50$ articles, the loss or gain percent is

A men sells two houses at the rate of $Rs.\,1.995$ Lakhs each. On one house he gains $20 \%$ and on the other he loses $20 \% .$ His gain or loss per cent in the whole transaction is

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 $Rs.$)

The marked price of a piano was $Rs.\, 15,000$. At the time of sale, there were successive discounts of $20 \%$ $10 \%$ and $10 \%$ on it. The sale price was (in $Rs.$)

Successive discounts of $10 \%, 20 \%$ and $50 \%$ will be equivalent to a single discount of..........$\%$