Which of the following measurements is the approximate metric equivalent of 7 inches?
A. 3.2 cm
B. 2.8 cm
C. 15.4 cm
D. 17.8 cm
Use the relation 1 inch=2.54 cm to change 7 inches to cm
Thus, 7 inches is about 17.8 cm.
Therefore, the Correct Answer is D.
More Questions on TEAS 7 Math
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Q #1: Which of the following is the decimal form of 87.5%?
A. 875
B. 8,750
C. 0.875
D. 8.75
Answer Explanation
The decimal equivalent of the percentage is the percentage value divided by 100. Thus
87.5%=87.5/100=0.875
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Q #2: A soccer field is rectangular in shape and is 100 meters long and 75 meters wide. The hectare is a metric unit of are often used to measure larger areas. Given that 1 hectare = 10000 meters2, which of the following represents the soccer field’s are in hectares?
A. 0.75 hectares
B. 7.5 hectares
C. 7,500 hectares
D. 75,000,000 hectares
Answer Explanation
The dimension of the field is shown below.
Area of rectangle = length * width
Area of rectangle = 100 m *75 m = 7500 m2
Area of the rectangle in hectares =
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Q #3: A homeowner has hired two people to mow his lawn. If person A is able to mow the lawn in 2 hr by herself and person B is able to mow in lawn in 3 hr by himself. Which of the following is the amount of time it would take for both person A and B to mow the lawn together?
A. 5 hours
B. 2.5 hours
C. 1.2 hours
D. 1 hours
Answer Explanation
We know that the two people work on the same work but the time to complete the work differs. Thus, the rate of doing the work for each person is as follows:
Rate of work for person A = 1 /2 work per hr
Rate of work for person B=1/3 work per hour
If person A and B work together, the time of doing the same work will be less than the fastest person A. Thus, we combine the two rates of A and B
We have 1 work and time to complete by both A and B becomes
