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Is 3 hours : 150 minutes and 42 days : 5 weeks in the form of proportion?
Given:
Two ratios 3 hours : 150 minutes and 42 days : 5 weeks.
To do:
We have to find whether the given ratios are in proportion.
Solution:
A proportion is simply a statement that two ratios are equal.
We know that,
1 hour $=$ 60 minutes
1 week $=$ 7 days
This implies,
$3\ hours : 150\ minutes=3\times60\ minutes:150\ minutes$
$=180\ minutes:150\ minutes$
$=30\times6:30\times5$
$=6:5$
$42\ days:5\ weeks=42\ days:5\times7\ days$
$=42\ days:35\ days$
$=7\times6:7\times5$
$=6:5$
$3\ hours : 150\ minutes=42\ days:5\ weeks$
Therefore, the given ratios are in proportion.
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