hall county school system

A hall measures 18 feet long and 10 feet wide. If the width of the hall is doubled, what would be the area of the new hall? => 34 square feet or 140 square feet or 24 square feet or 360 square feet..

In this process, the pure alumina (Al 2 O 3 ) obtained from Bayer's process is electrolytically reduced to aluminium. An electrolytic cell used is called the Hall's cell. The Hall's cell is a steel tank lined inside with a layer of graphite which is made the cathode. The elec..

A conference hall has 13 chairs in the first row. Each succeeding row has 10 more chairs than the one before it. Find the number of chairs, if the hall consists of 6 rows. => 288 or 151 or 228 or 63..

Systemic is the most widespread circulatory pathway. It accounts for supply of oxygenated blood to all the parts of the body and collection of deoxygenated blood from the tissues. The left ventricle of the heart opens into a major artery called the aorta. The aorta branches just abov..

Each of the 15 supermarkets in a county sell 12 different types of candles. In how many ways can you choose a candle? => 195 or 171 or 180 or 195..

A conference hall has 38 rows of seats. The first row has 22 seats and each successive row has 4 seats more than the previous row. Find the number of seats in the conference hall? => 76 or 3648 or 7296 or 170..

The length of a hall is 14 m. and its width is 7 m. The sum of the areas of the floor and the flat roof is equal to the sum of the areas of the four walls. What is the height of the hall? => 4.7 m or 2.3 m or 0.2 m or 9.3 m..

There are two examination halls P and Q. If 60 students are sent from P to Q then the number of students in P is half that of Q. If 30 students are sent from Q to P then the number of students in each hall is the same. Find the number of students in P and Q. => 60, 180 or 240, 3..

The population of a county in 1996 was 260 million and the population in 1998 was 280 million. Find the percent of increase in the population. => 12.7% or 7.7% or 17.7% or 19.7%..

At a concert hall there were 18 chairs in the first row, 35 chairs in the second row, and 65 chairs in the third row. Find the total number of chairs in the three rows. => 218 or 118 or 108 or 68..