Construction Math Free Test

1. Calculate the material costs and labor savings for Type A Doors.
$400 x 6 = $2,400: material cost $20 x 6 = $120: labor savings
2. Calculate the material costs for Type B Doors.
$180 x 6 = $1,080: material cost
3. Calculate the total savings for Type A over Type B doors.
a. Subtract the labor from the material costs for Type A doors.
$2,400 - $120 = $2,280
b. Subtract the cost of Type B doors from Type A doors.
$2,280 – $1,080 = $1,200

A circle will provide the largest area. In order to find the area of the circle, you must find the radius using the circumference
(perimeter), which is 12.73 ft,
C = 3.14x2xr,80 = 3.14x2xr;
r = 12.
73. The area of a circle is calculated by A=3.14r(2), giving a total of 509.8 sq. ft. If a square shape were built, the sides would be 20 x 20 (8% = 20) giving an area of only 400 sq. ft., 20 x 20 = 400. Playing around with numbers for a rectangle will show that the area would not be able to exceed the circle.

Since each shelf can hold 9 cans, divide 126 by 9; 126/9 = 14.

32 chainsaws are being delivered the next day, so 18 are still unaccounted for, 50 - 32 = 18. Calculate the percentage out of 50 that these 18 chainsaws represent, 18/50 x 100 = 36%.

To solve I = E/R for E, multiply both sides of the equation by R. The Rs cancel each other out on the right side of the equation,
so the equation becomes IR = E. The equation can be flipped ’ around to become E = IR, which is Answer A..

Calculate the number of risers required.
1. Convert height from feet to inches.
Multiply feet by 12"
12’ x 12” = 144”
2. Divide by 7”
144" / 7" = 20.57 risers
3. Subtract 1 riser for the top floor
20.57 - 1.00 = 19.57 Round up to 20 risers

Let Jeffs regular rate be y and his overtime rate be 2y. He worked
a total of 64.5 hours, so he worked his regular 50 hours plus 14.5
hours of overtime, 64.5 hrs - 50 hrs = 14.5 hrs. The money he
earned from the regular week is time x rate, which is represented
by
$50y, 50 x $y = $50y.
The money he earned from overtime work is also time x rate,
which is $29y,
14.5x$2y = $29y.
His regular salary plus overtime gives the total and can be written
as $50y + $29y = $1,2445.25. Solve for y: $79y = $1,2445.25;
$79y/79 = $1,244.25/79;
$y = $15.75/hour.

There are 1,000 milliliters in 1 liter. To calculate how many liters 174 milliliters are, divide 174 by 1,000; 174 mL/1,000 mL/L= 0.174 L.

The number of undamaged bricks is 133,145 -12 = 133. To find the percentage available, divide the number of available bricks
by the total number that were sent and multiply by 100 to get a percentage, 133/145 x 100 = 91.7%.

Replace s with $2,200. The equation becomes E = 0.22x2,200 + 150. The rules for order of operations state that multiplication is always 38. done before addition, Therefore, complete the multiplication, ' 0.22x2,200 = 484, first, then add 150 to the result; 484+ 150 = $634.

When converting from feet to meters (smaller unit, larger unit), divide the total feet by 3.28,62.73.28 = 19.1 meters.

Take the total time allowed, 40 hours, and subtract the time already used, 9+6.5 + 8 + 10.5 = 34, to find the leftover time, 40 - 34 = 6.

If there are 100 centimeters in 1 meter, than to find how many centimeters are in 10 meters, multiply 100 by 10; 100 cm/m x 10 m = 100 centimeters.

For the highway portion of the trip. Joe will average 65 mph for 13 miles. Since 13 is 1/5 of 65, this portion of the trip will take Joe 1/5 of an hour, or 12 minutes. For the remaining 12 miles of the trip, Joe will average 24 mph. Since 12 is half of 24, this portion of the trip will take half an hour or 30 minutes. The total time will be 12 minutes + 30 minutes = 42 minutes. To arrive by 1:30 p.m., Joe must leave no later than 12:48 p.m. since 1:30 p.m. - 42 minutes = 12:48 p.m. Therefore, the correct answer is 12:48 p.m.

A = "j" x Hip & Valley Factor (10' x 1.50)
B = "n" x Hip & Valley Factor (10' x 1.50)
C = "x" x Hip & Valley Factor (10' x 1.50)
D = "y" x Hip & Valley Factor (10' x 1.50)
E = "q" x Hip & Valley Factor (10' x 1.50)
F = "h" x Hip & Valley Factor (10' x 1.50)
15 (A) + 15 (B) + 15 (C) + 15 (D) + 15 (E) + 15 (F) = 90'