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प्रश्न
Give an example of the following uses of a machine:
to obtain gain in speed
एक पंक्ति में उत्तर
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उत्तर
Gears are used to multiply speed
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क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
Give an example of the following uses of a machine:
to obtain gain in speed
Gears are used to multiply speed