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Unit Conversion Word Problems - Page 17

Unit Conversion Word Problems
  • Page 17
 161.  
How many days are there in 5 weeks 4 days?
a.
43 days
b.
34 days
c.
39 days
d.
35 days


Solution:

5 weeks = 5 x 7 = 35 days
[1 week = 7 days]

5 weeks 4 days = 35 + 4 = 39 days
[Simplify.]


Correct answer : (3)
 162.  
How many minutes are there in 5 weeks?
a.
50300 min
b.
50500 min
c.
50400 min
d.
50600 min


Solution:

Number of days in a week = 7

Number of hours in a day = 24

Number of minutes in an hour = 60

Number of minutes in a week = 7 x 24 x 60 = 10080 min

Number of minutes in 5 weeks = 10080 x 5 = 50400 min


Correct answer : (3)
 163.  
How many seconds make 3 days?
a.
259000 s
b.
259200 s
c.
259300 s
d.
259400 s


Solution:

= 24 x 60 = 1440 min
Number of minutes in a day
[1 day = 24 h and 1 h = 60 min]

= 1440 x 60 = 86400
Number of seconds in a day
[1 min = 60 s]

= 3 x 86400 = 259200
Number of seconds in 3 days
[Simplify.]


Correct answer : (2)
 164.  
Victor is 468 weeks old. Express his age in years.
a.
12 years
b.
11 years
c.
10 years
d.
9 years


Solution:

1 year = 52 weeks
[Formula.]

468 weeks = 468 / 52 = 9 years
[Use the formula to find age in years.]

Victor's age is 9 years.
[Simplify.]


Correct answer : (4)
 165.  
Find the approximate number of days in 7 years.
a.
2355 days
b.
2655 days
c.
2555 days
d.
2455 days


Solution:

1 year » 365 days

7 years » 7 x 365 » 2555 days

So, there are approximately 2555 days in 7 years.


Correct answer : (3)
 166.  
How many pints make one gallon?
a.
16 pints
b.
8 pints
c.
12 pints
d.
10 pints


Solution:

8 pints = 1 gallon

So, the equivalent of 1 gallon is 8 pints.


Correct answer : (2)
 167.  
How many cups are there in 2000 gallons?
a.
40000 cups
b.
28000 cups
c.
32000 cups
d.
36000 cups


Solution:

2000 gallons = 2000 x 16 = 32000 cups
[Since 1 gallon = 16 cups, multiply 2000 by 16 .]

There are 32000 cups in 2000 gallons.


Correct answer : (3)
 168.  
The length of the Golden Gate Bridge is 8981 feet. Identify its length in miles.
a.
4.7 miles
b.
2.7 miles
c.
1.7 miles
d.
3.7 miles


Solution:

8981 feet = 8981 ÷ 5280 = 1.7 miles
[Since 1 mile = 5280 feet, divide 8981 by 5280.]

The length of the Golden Gate Bridge is 1.7 miles.


Correct answer : (3)
 169.  
The height of a lighthouse is 375 feet. Express the height of the lighthouse in miles.
a.
0.11
b.
0.07
c.
0.09
d.
0.1


Solution:

375 ft = 3755280 = 0.07 miles
[Since 1 mile = 5280 feet, divide 375 by 5280.]

The height of the lighthouse is 0.07 miles.


Correct answer : (2)
 170.  
The length of a wall is 15 feet. What is the length of the wall in yards?
a.
5 yards
b.
10 yards
c.
4 yards
d.
None of the above


Solution:

3 feet = 1 yard
[Write yard in terms of feet.]

15 feet = 15 ÷ 3 = 5 yards
[Convert feet to yards, so divide 15 by 3.]

The length of the wall is 5 yards.


Correct answer : (1)

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