The difference between successive discounts of $40 \%$ followed by $30 \%$ and $45 \%$ followed by $20 \%$ on the marked price of an article is $Rs.\,12.$ The marked price of the article is (in $Rs.$)
$400$
$200$
$800$
$600$
Ram purchases a chair at $Rs.\, 70$ and spent $Rs$. $17$ on its repair and $50$ paise on cartage. If he sold the chair at $Rs.\, 100$ then his approximate margin of profit in $\%$ will be?
A shopkeeper sells an article at a gain of $10 \% .$ Had he sold it at a loss of $20 \%,$ its selling price would have been $Rs.\,180$ less. What is the cost price of the article? (in $Rs.$)
Raman sells a machine for $Rs.\, 39$ lakh at a loss. Had he sold it for $Rs.\, 49$ lakh, his gain would nhave been three times the loss. What is the cost price of the machine? (in $Rs........lakh$)
The cost price of an article is $64 \%$ of the marked price. The gain percentage after allowing a discount of $12 \%$ on the marked price is........$\%$
A shopkeeper bought $30\, Kg$ of wheat at the rate of $Rs.\,45$ per $Kg.$ He sold $40\%$ of the total quantity at the rate of $Rs.\,50$ per $Kg.$ Approximately, at what price per $Kg$ should he sell the remaining quantity to make $25$ percent overall profit? (in $Rs.$)