Poll Asked: November 25, 20212021-11-25T17:40:24+05:30 2021-11-25T17:40:24+05:30Category: Number Puzzles A gear 12 cm in diameter is turning a gear 18 cm in diameter. When the smaller gear has 42 revolutions. how many has the larger one made? Anonymous Poll ResultsPlease login to vote and see the results. Select one answer 28 20 15 24 Share Facebook 1 Answer Voted Recent Mighty Ashish Guru 2021-11-25T17:41:21+05:30Added an answer on November 25, 2021 at 5:41 pm Explanation: Distance covered by small gear =2πr×42 84π×12\2=504π = No. of revolution by big gear =504π\2π×9=28 0 Share Share Share on Facebook Share on Twitter Share on WhatsApp Share on LinkedIn Answer this question & earn 50 pointsSign In with FacebookSign In with GoogleSign In with Twitteror use Username or email* Password* Remember Me! Forgot Password?

Explanation:

Distance covered by small gear

=2πr×42

84π×12\2=504π

= No. of revolution by big gear

=504π\2π×9=28