Convert the time units of following questions,1. 20 minutes = ……�

1.	Convert the time units of following questions,1. 20 minutes = …………. seconds2. 6 1/2 minutes = …………. seconds3. 15 1/4 minutes = …………. seconds4. 4 hour = …………. seconds5. 2 3/4 hour . seconds
Answer» 1. 20 minutes = 20 x 60 seconds = 1200 seconds 2. 6 1/2 minutes = 6 minute + 1/2 minute = 6 x 60 seconds + 1/2 x 60 seconds = 360 seconds + 30 seconds = 390 seconds 3. 15 1/4 minutes = 15 minute + 1/4 minute = 15 x 60 seconds + 1/4 x 60 seconds = 900 seconds + 15 seconds = 915 seconds 4. 4 hour = 4 x 60 minutes = 240 minute = 240 x 60 seconds = 14400 seconds 5. 2 3/4 hour = 2 hour + 3/4 hour = 2 x 60 minutes + 3/4 x 60 minutes = 120 minutes + 3 x 15 minutes = 120 minutes + 45 minutes = 120 x 60 seconds +45 x 60 seconds = 7200 seconds + 2700 seconds = 9900 seconds

Convert the time units of following questions,1. 20 minutes = …………. seconds2. 6 1/2 minutes = …………. seconds3. 15 1/4 minutes = …………. seconds4. 4 hour = …………. seconds5. 2 3/4 hour . seconds

Answer»

1. 20 minutes = 20 x 60 seconds
= 1200 seconds

2. 6 1/2 minutes = 6 minute + 1/2 minute

= 6 x 60 seconds + 1/2 x 60 seconds
= 360 seconds + 30 seconds
= 390 seconds

3. 15 1/4 minutes = 15 minute + 1/4 minute

= 15 x 60 seconds + 1/4 x 60 seconds
= 900 seconds + 15 seconds
= 915 seconds

4. 4 hour = 4 x 60 minutes

= 240 minute = 240 x 60 seconds
= 14400 seconds

5. 2 3/4 hour = 2 hour + 3/4 hour

= 2 x 60 minutes + 3/4 x 60 minutes
= 120 minutes + 3 x 15 minutes
= 120 minutes + 45 minutes
= 120 x 60 seconds +45 x 60 seconds
= 7200 seconds + 2700 seconds
= 9900 seconds

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