If two successive discounts of $50 \%$ and $10 \%$ are offered,what is the net discount (in $\%$) ?

The discounts offered on a shirt of $Rs. 500$ and a pair of trousers of $Rs. 1000$ are $20\%$ and $40\%$ respectively. If Ajay bought $3$ shirts and $3$ pairs of trousers,what was the effective discount (in $\%$) he received?

What was the rate of discount if a computer with a marked price of $Rs. 30,000$ was sold for $Rs. 28,000$? (in $\%$)

The price of a bicycle is marked by a trader at $Rs.\, 1000$. He sold the bicycle allowing successive discounts of $20 \%, 10 \%$ and $5 \%$. If the trader gained $14 \%$,then the cost price of the bicycle (in $rupees$) is:

What will be the net discount (in $percentage$) after two successive discounts of $50 \%$ and $50 \% ?$

$A$ book seller allowed $10 \%$ discount on the printed price. He gets a $30 \%$ commission from the publisher. His profit percentage will be: