High School

Match the words about time that have the same meaning and color the same colour.

1. Complete the following:
a. How many seconds are there in a minute? ____ hour? ____ day? ____ week? ____
b. How many minutes are there in an hour? ____ month? ____
c. How many hours are there in a day? ____ week? ____ year? ____
d. How many days are there in a week? ____ a year? ____ a century? ____
e. How many years are there in a century? ____ 500 centuries? ____

2. Convert minutes to seconds:
a. 2 minutes ____
b. 55 minutes ____
c. 3 1/2 minutes ____
d. 10 1/2 minutes ____
e. 15 1/5 minutes ____

Convert hours to minutes.
a. 2 hours ____
b. 48 hours ____
c. 20 1/2 hours ____
d. 30 hours ____
e. 12 3/4 hours ____

Convert hours to seconds.
a. 1 hour ____
b. 12 hours ____
c. 30 hours ____
d. 4 1/2 hours ____
e. 20 1/4 minutes ____

Complete the table.
| Weeks | 1 | 1.5 | 2 | 2.5 | 3 | 3.5 | 4 | 4.5 | 5 | 7 |
|---|---|---|---|---|---|---|---|---|---|---|
| Days | 10 1/2 | | | | | | | | | |
| Hours | | | | | | | | | | 252 |
| Minutes | | | | | | | | | | |

Convert years to weeks and days:
| | Weeks | Days |
|---|---|---|
| a. 2 years | | |
| b. 5 years | | |
| c. 10 years | | |
| d. 1 1/2 year | | |
| e. 15 1/2 years | | |

Answer :

Let's answer these questions step-by-step.

  1. Complete the following:

    a. How many seconds are there in a minute? [tex]60[/tex]

    • How many seconds in an hour? [tex]60 \times 60 = 3600[/tex]
    • How many seconds in a day? [tex]3600 \times 24 = 86400[/tex]
    • How many seconds in a week? [tex]86400 \times 7 = 604800[/tex]

    b. How many minutes are there in an hour? [tex]60[/tex]

    • How many minutes in a month? Assume 30 days so, [tex]60 \times 24 \times 30 = 43200[/tex] minutes.

    c. How many hours are there in a day? [tex]24[/tex]

    • How many hours in a week? [tex]24 \times 7 = 168[/tex]
    • How many hours in a year? Assume 365 days, so, [tex]24 \times 365 = 8760[/tex] hours.

    d. How many days are there in a week? [tex]7[/tex]

    • How many days in a year? [tex]365[/tex]
    • How many days in a century? [tex]365 \times 100 = 36500[/tex]

    e. How many years are there in a century? [tex]100[/tex]

    • How many in 500 centuries? [tex]100 \times 500 = 50000[/tex]

  2. Convert minutes to seconds:

    a. 2 minutes [tex]2 \times 60 = 120:[/tex]

    b. 55 minutes [tex]55 \times 60 = 3300[/tex]

    c. 3 [tex]\frac{1}{2}[/tex] minutes [tex]3.5 \times 60 = 210[/tex]

    d. 10 [tex]\frac{1}{2}[/tex] minutes [tex]10.5 \times 60 = 630[/tex]

    e. 15 [tex]\frac{1}{5}[/tex] minutes [tex]15.2 \times 60 = 912[/tex]

Convert hours to minutes:

a. 2 hours [tex]2 \times 60 = 120[/tex]

b. 48 hours [tex]48 \times 60 = 2880[/tex]

c. 20 [tex]\frac{1}{2}[/tex] hours [tex]20.5 \times 60 = 1230[/tex]

d. 30 hours [tex]30 \times 60 = 1800[/tex]

e. 12 [tex]\frac{3}{4}[/tex] hours [tex]12.75 \times 60 = 765[/tex]

Convert hours to seconds:

a. 1 hour [tex]1 \times 3600 = 3600[/tex]

b. 12 hours [tex]12 \times 3600 = 43200[/tex]

c. 30 hours [tex]30 \times 3600 = 108000[/tex]

d. 4 [tex]\frac{1}{2}[/tex] hours [tex]4.5 \times 3600 = 16200[/tex]

e. 20 [tex]\frac{1}{4}[/tex] minutes [tex]20.25 \times 60 = 1215[/tex] seconds (Note: changed to minutes for conversion)

Complete the table by filling in the blanks:

Weeks11.522.533.544.557Days710.51417.52124.52831.53549Hours1682523364205045886727568401176Minutes10080151202016025200302403528040320453605040070560

Convert years to weeks and days (assuming 365 days/year):

WeeksDaysa. 2 years104.28730b. 5 years260.711825c. 10 years521.433650

d. 1

[tex]\frac{1}{2}[/tex]

year

78.57548

e. 15

[tex]\frac{1}{2}[/tex]

years

807.144678

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