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 |

[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 |

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 |

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 |

[Formula.]

468 weeks =

[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 |

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 |

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 |

[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 |

[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 |

[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 |

[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)