Free Practice Question
PS · Problem Solving
655-705
Arithmetic
A circular microchip with a radius of 3 centimeters is produced based on a blueprint that is scaled such that 1 centimeter on the blueprint equals 0.6 millimeters on the microchip. What is the diameter of the blueprint representation of the microchip, in centimeters? (1 centimeter = 10 millimeters)
Answer Choices
Correct answer marked below10
Correct
B
20
C
30
D
36
E
40
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Explanation
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Official Explanation
Official
0.6 mm of microchip corresponds to 1 cm of blueprint. Therefore, 6/10 cm of microchip equals 1 cm of blueprint. This means that 1 cm of microchip is equal to 10/6 cm of blueprint.…
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A
amanJun 23, 2024
good question
What this question tests
What it tests
Your fluency with the order of operations, fractions, decimals, and basic number sense — the foundation every quant question leans on.
Common trap
Applying the order of operations out of sequence or rounding intermediate values before the final step.
Details
Difficulty
655-705
Type
PS
Category