Question

1hour 20 minutes:2hour in ratio

Answer 1

Answer:

1 hour=60 min,

1hour 20min=80min

2hours=120min

80:120=2min:3min(divideboth sides with40)

Answer 2

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1hr 20min : 2hr Ratio?

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$\bf{\underline{\red{\large{Answer:-}}}}$

Ratio:- It is a quantitative amount which tells us how much times one number contains the another number.

➠a : b = $\dfrac{a}{b}$

➠A ratio does not have any unit as the units get cancelled.

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➠a = 1hr 20min

➠b = 2hr

Since the units are different we have to convert both a and b into minutes.

1hr = 60minutes

➠a = 1hr 20min = 60min + 20min = 80min

➠b = 2hr = 60min + 60min = 120min

aㅤㅤㅤㅤ: ㅤㅤㅤㅤb

➠80min ㅤ:ㅤㅤㅤㅤ120min

➠$\sf{\large{\frac{80\:min}{120\:min}}}$

Here the two min(s) get cancelled.

➠$\sf{\large{\frac{2}{3}}}$

➠2 : 3

$\rule{400}{4}$

Answer = $\large{\green{\boxed{\bf{2\::\:3}}}}$