Sound Boards
: Curved surfaces can reflect sound waves. This reflection of sound waves is used in auditorium to spread the waves uniformly throughout the hall. Reflection of sound waves is done by using Sound Boards. The speaker is located at the focus of the sound board..
A square board has a side measuring 14 inches in length. Find the area..
A square board has a side measuring 14 inches in length. Find the area of the board. => 206 square inches or 196 square inches or 186 square inches or 28 square inches..
Josh wants to make an advertisement board similar to another advertise..
Josh wants to make an advertisement board similar to another advertisement board, which has a length and width of 18 feet and 12 feet. He wants to have a length of 12 feet for the new board. What will be the width of the board that he wants to make? => 10 fee..
Which of the models represents 0.5 in the tenths model of a square boa..
Which of the models represents 0.5 in the tenths model of a square board? => Model 1 or Model 2 or Model 3 or Model 4..
The area of a black board is 18 ft2 and its width is 3 ft. What is the..
The area of a black board is 18 ft 2 and its width is 3 ft. What is the perimeter of the black board? => 16 ft or 22 ft or 20 ft or 18 ft..
45 people were traveling by a bus, the bus stopped due to a technical ..
45 people were traveling by a bus, the bus stopped due to a technical snag in the engine. 35 of them boarded another bus. What percent of people boarded another bus? => 77.78% or 72.78% or 82.78% or 85.78%..
The length and width of a rectangular board are in the ratio 5 : 4. T..
The length and width of a rectangular board are in the ratio 5 : 4. The frame adds 5 inches to the width and 6 inches to the length to form a laminated board. Write a polynomial expression that represents the total area of the board, including the frame. => 20 y 2 + 49..
A rectangular board of length 6 m and width 5 m is to be painted. If t..
A rectangular board of length 6 m and width 5 m is to be painted. If the cost of painting is $5 per square meter, then what is the total charges for painting the board ? => $ 300 or $ 150 or $ 160 or $ 75..
A bus can accommodate 40 passengers. If 48 passengers board the bus in..
A bus can accommodate 40 passengers. If 48 passengers board the bus in a rush hour, then find the percent by which the bus is overloaded. => 15 or 8 or 13 or 20..
Every fourth passenger boarding the aircraft was requested to fill up ..
Every fourth passenger boarding the aircraft was requested to fill up a small questionnaire to find out the customer satisfaction. The data collection methodology is _______ sampling. => stratified or systematic or random or cluster..
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