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Which one of the following is true?1. The number of seconds in 6 hours is equal to the number of minutes in 12 days.2. The number of minutes in 15 days is equal to the number of seconds in 8 hours.3. The number of minutes in 10 days is equal to the number of seconds in 6 days4. The number of seconds in 2 hours is equal to the number of minutes in 5 days. |
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Answer» Correct Answer - Option 4 : The number of seconds in 2 hours is equal to the number of minutes in 5 days. Option 1: An hour = 60 minutes A minute = 60 seconds An hour = 60 × 60 The number of seconds in 6 hours is equal to the number of minutes in 12 days. The number of seconds in 6 hours = 6 × 60 × 60 ⇒ 21600 seconds The number of minutes in 12 days = 12 × 24 × 60 ⇒ 17280 minutes 21600 > 17280 Hence, The number of seconds in 6 hours is not equal to the number of minutes in 12 days. Option 2: The number of minutes in 15 days is equal to the number of seconds in 8 hours. The number of minutes in 15 days = 15 × 24 × 60 ⇒ 21600 minutes The number of seconds in 8 hours = 8 × 60 × 60 ⇒ 28800 seconds 21600 < 28800 The number of minutes in 15 days is not equal to the number of seconds in 8 hours. Option 3: The number of minutes in 10 days is equal to the number of seconds in 6 days The number of minutes in 10 days = 10 × 24 × 60 ⇒ 14400 minutes The number of seconds in 6 days = 6 × 24 × 60 × 60 ⇒ 518400 seconds 14400 < 518400 Option 4: The number of seconds in 2 hours is equal to the number of minutes in 5 days. The number of seconds in 2 hours = 2 × 60 × 60 ⇒ 7200 seconds The number of minutes in 5 days = 5 × 24 × 60 ⇒ 7200 minutes 7200 = 7200 ∴ Option 4 is true |
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