WBCS Exe. Prelims 2017 Prev. Yr. Paper

A man starts from his office and goes $8\text{km}$ East. Then he turns to the left and walks for $3\text{km}$. Again he turns left and walks for $8\text{km}$. At what distance is he from the starting point?

Due to some error in the weighing machine, Aahana's weight was shown as $72\text{kg}$ as against the actual value of $80\text{kg}$. The percentage error is

A man won $\text{Rs. }60,000$ in a lottery. $35\%$ of the money was taken by the Government as a tax. He actually receives:

Due to rotten fish, a fish trader is forced to sell at a $10\%$ loss. If the purchase value is $\text{Rs. }250$, the selling price will be:

Number : Mathematics :: Notes : ?