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swarupa

· started a discussion

· 1 Months ago

small correction in answer (Question: 89883.0 )

its not 17... its 15

Question:
A wheel that has 5 cogs is meshed up with a larger wheel of 15 cogs. When the smaller wheel has made 27 revolutions, find the number of revolutions made by the larger wheel.
Options:
A) 9
B) 6
C) 12
D) 15
E) None of these.
Solution:

Let the required number of revolutions made by larger wheel be x.

More cogs, less revolutions (Indirect Proportion)

Cogs                           Revolutions made

5                                      27

15                                     x


15*X = 5*27 ⇒x = 5*27/15=9 revolutions

Knowledge Expert

· commented

· 1 Months ago

@Swarupa: Done
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