B

9000085303

Level: 
B
The shop received \(30\) pieces of TV from the manufacturer NoName. Five TVs in this delivery were defect. The shop also received TVs from the manufacturer GoodName. All these TVs were perfect. The final inspection revealed that \(10\, \%\) of TVs were defect in total. Use these information to find out how many TVs have been supplied from the producer GoodName.
\(20\)
\(25\)
\(18\)
\(16\)

9000085304

Level: 
B
The final score of the hockey match between teams \(A\) and \(B\) was \(2 : 2\). The goaltender of \(A\) had success rate \(90\, \%\) (he stopped \(90\, \%\) of all shots on goal) and the goaltender of the team \(B\) had fail rate \(20\, \%\) (\(20\, \%\) of all shots on goal went into his net). How many shots on goal has been in the match in total?
\(30\)
\(25\)
\(35\)
\(40\)

9000085307

Level: 
B
A machine fills \(2\: 000\) bottles per hour. As a consequence of technical problems, the efficiency of the machine decreased by \(10\, \%\). How many bottles can be filled by the machine with the mentioned technical problems during a time period of \(8\) hours?
\(14\: 400\)
\(13\: 800\)
\(14\: 500\)
\(15\: 200\)

9000078908

Level: 
B
A house price in the March was \(\$259\: 000\). The house has not been sold for several months and the price dropped to \(\$234\: 000\) in August. Write the discount as percents of the original price. (Round to the tenth.)
\(9.7\, \%\)
\(10.7\, \%\)
\(10.5\, \%\)
\(9.5\, \%\)