A person weighed themselves at 190 lb. Three months later they weighed themselves at 180 lb. Which of the following is the percent of weight the person lost over 3 months? (Round to the nearest percent.)
A. 8%
B. 9%
C. 11%
D. 5%
Explanation: The percentage change in weight is found in three steps below:
Absolute change in weight = final weight - initial weight
Absolute change in weight = (|180 - 190| = |-10| = 10)
Relative change in weight = (frac{absolute change}{initial weight} = frac{10}{190} = 0.0526)
Percent change = relative change * 100%
Percent change = 0.0526 * 100% = 5.26%
The percent change in weight lost is 5.26%, which is about 5%.
Therefore, the Correct Answer is D.
More Questions on TEAS 7 Math
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Q #1: Which of the following is the total number of whole boxes that measure 2.4 ft * 2.4 ft * 2.4 ft that can be stored in a room that measures 18 ft * 18 ft * 18 ft, if the size of the boxes cannot be altered?
A. 125
B. 92
C. 422
D. 400
Answer Explanation
The number of boxes is determined by finding the volume of the room divided by the volume of the box.
Number of boxes
The number of boxes that can be stored in the room is about 422.
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Q #2: A circle has an area of 144 in2. Which of the following is the circumference of the circle in terms of pi ( )?
A. \(18 \pi in\)
B. \(6 \pi in\)
C. \(12 \pi in\)
D. \(24 \pi in\)
Answer Explanation
We need to find the circumference of the circle.
Before finding the circumference of a circle, we need to find the radius of the circle from the given area.
Let r be the radius of the circle, then the area of the circle is:
Substituting the value of area in the above equation
Dividing both sides by pi and taking square root on both sides yields
The radius of the circle with the given area is 12 in, and the circumference of the circle becomes:
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Q #3: How many liters are there in 560 milliliters?
A. 5.6
B. 0.56
C. 56
D. 5600
Answer Explanation
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Q #4: Which of the following is the decimal equivalent of 9/25?
A. 36
B. 0.36
C. 3.6
D. 0.25
Answer Explanation
9/25 is the same as 9÷25.
Using the calculator, we get 0.36.
Thus, 9/25 in decimal form is 0.36.
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Q #5: Which of the following is the appropriate unit of a measure to express the weight of a pen?
A. Liter
B. Milliliter
C. Gram
D. Kilogram
Answer Explanation
Although we can measure the mass of the pen in kilogram, the unit is quite large and is not appropriate for measuring small objects. Liter and milliliter are units of measuring volume. Thus, gram is the appropriate unit for measuring weight of a pen.
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Q #6: Which of the following is the decimal form of 235.8%?
A. 2358
B. 23.48
C. 0.2358
D. 2.358
Answer Explanation
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Q #7: As the number of credit hours a student takes in a semester increases, the tuition fees, the amount of access fees, and the number of student loans available also increase. Which of the following is the independent variable?
A. Amount of access fees
B. Tuition fees
C. Number of credit hours
D. Number of student loans available
Answer Explanation
A change in number of credit hours will lead to a change in the amount of access fees, amount of tuition fees, and availability of the number of student loans. Thus, number of credit hours is the independent variable.
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Q #8: A circle has an area of 36\pi in2. Which of the following is the circumference of the circle in terms of pi ( \pi)?
A. 3 \pi in
B. 6 \pi in
C. 12 \pi in
D. 24 \pi in
Answer Explanation
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Q #9: A cheese recipe calls for 1/2 cup of flour for every 3/8 cup of milk. To make a bigger batch, the chef uses 3 cups of flour. Which of the following would be the amount of milk needed for the bigger batch?
A. 2 ¼ cups
B. 1 3/4 cups
C. 4 cups
D. 2 ¾ cups
Answer Explanation
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Q #10: A motor company’s stock price was $33.20 on Tuesday. On Wednesday, the price went up $2.45. On Thursday, the price decreased from Wednesday’s price by $1.50. On Friday, the price went up $1.62 from Thursday’s price. Which of the following was the final price on Friday?
A. $35.65
B. $34.15
C. $35.77
D. $34.82
Answer Explanation
