PERCENTAGES 1

What percentage of 1 hour is 12 minutes?

solution

1 hour = 60minutes

To get %'ge we take the fraction of 3min in 1 hour(60min) and multiply by 100.

= 12      x 100

  60

= 12 ¹     x 100

  60₅

= 1      x 100²⁰  

  5₁

= 20%

Hence percentage of 12 minutes in 1 hour is 20 %

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NECTA FORM II - 2013 QN. 7

What percentage of 1 hour is 15 minutes?