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Class 6 Vocational Education Medium Mcq English Medium

Why must holes be made in the exact centres of the bottle caps for the rubber band car?

Question
Why must holes be made in the exact centres of the bottle caps for the rubber band car?
So the wheels turn smoothly on the axle
So that air can enter
So the rubber band can be stored
So the caps look nice
Answer
So the wheels turn smoothly on the axle
Detailed Explanation
Centred holes let the caps turn evenly as wheels on the toothpick or skewer axle. — Examisthan.com
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