Customary units of time is a system of measurements commonly used for time in the united states.
For measuring time , the U.S. customary system uses the second, minute, hour, day, week, month and year which are the only seven customary time measurements in everyday use.
The relationship among the measurements second, minute, hour, day, week, month and year are given below.
Problem 1 :
Convert 2 minutes into seconds.
Solution :
Here, we convert bigger unit into smaller unit. So we have to multiply.
2 minutes = 2 ⋅ 60 seconds
2 minutes = 120 seconds
So, 2 minutes is equal to 60 seconds.
Problem 2 :
Convert 3.5 hours into minutes .
Solution :
Here, we convert bigger unit into smaller unit. So we have to multiply.
3.5 hours = 3.5 x 60 minutes
3.5 hours = 210 minutes
So, 3.5 hours is equal to 210 minutes.
Problem 3 :
Convert 3 days into minutes.
Solution :
Here, we convert bigger unit into smaller unit unit. So we have to multiply.
3 days = 3 x 24 hours
3 days = 72 hours
3 days = 72 x 60 minutes
3 days = 4320 minutes
So, 3 days is equal to 4320 minutes.
Problem 4 :
Convert 480 seconds into minutes.
Solution :
Here, we convert smaller unit into bigger unit. So we have to divide.
480 seconds = 480 / 60 minutes
480 seconds = 6 minutes
So, 480 seconds is equal to 6 minutes.
Problem 5 :
Convert 112 days into weeks.
Solution :
Here, we convert smaller unit into bigger unit. So we have to divide.
112 days = 112 / 7 weeks
112 days = 16 weeks
So, 112 days is equal to 16 weeks.
Problem 6 :
David prepares 24 pounds of metal in 1 hour 36 minutes. At the same rate, How many ounces of metal will he prepare in one minute ?
Solution :
1 hour 36 minutes = 60 min + 36 min = 96 minutes
1 pound = 16 ounces
24 pounds = 24 ⋅ 16 ounces = 384 ounces
1 hour 36 min -----> 24 pounds
96 minutes -----> 384 pounds
So, no. of pounds prepared in 96 minutes is 384 ounces.
No. of ounces prepared in in one minute is
= 384/96
= 4
So, 4 ounces of metal is prepared in one minute.
Problem 7 :
Mark used 15840 ounces of metal to make an alloy in 45 minutes. Find the amount metal used in one minute (in ounces).
Solution :
No. of ounces used in 45 minutes = 15840
No. of ounces used in 1 minute = 15840/45
No. of ounces used in 1 minute = 352
So, 352 ounces of metal used in 1 minute.
Problem 8 :
Mrs. Moore took 4 hours 30 minutes to complete a work. How many seconds will Mrs. Moore take to complete the same work ?
Solution :
4 hours 30 minutes = 4 ⋅ 60 min + 30 min
4 hours 30 minutes = 240 min + 30 min
4 hours 30 minutes = 270 minutes
4 hours 30 minutes = 270 ⋅ 60 seconds
4 hours 30 minutes = 16200 seconds
So, Mrs. Moore will take 16200 seconds to complete the same work.
Problem 9 :
Tommy takes 10 minutes time for each pizza he makes. How many seconds will he take to make 4 pizzas ?
Solution :
1 pizza -----> 10 minutes
4 pizzas -----> 4 ⋅ 10 minutes
4 pizzas ------> 40 minutes
4 pizzas ------> 40 ⋅ 60 seconds
4 pizzas ------> 2400 seconds
So, Tommy will take 2400 seconds to make 4 pizzas.
Problem 10 :
A piece of work can be done by Mr. David in 9 days working 10 hours per day. How many hours will be taken by Mr. David to complete another work which is 4 times the first one ?
Solution :
Time needed to complete the given work is
= 9 ⋅ 10 hours
= 90 hours
Time needed to complete another work which is 4 times the first first work is
= 4 ⋅ 90 hours
= 360 hours
So, the required time is 360 hours.
Problem 11 :
Jose needs 6 hours to complete a work. But Jacob need 3/4 of time taken by Jose to complete the same work. In how many minutes will Jose complete the work ?
Solution :
Time required for Jose = 6 hours
Time required for Jacob = 3/4 of time taken Jose
Time required for Jacob = 3/4 ⋅ 6 hours
Time required for Jacob = 3/4 ⋅ 6 ⋅ 60 minutes
Time required for Jacob = 270 minutes
So, Jacob needs 270 minutes to complete the work.
Problem 12 :
Robert has been given 2 hours to complete a work. If the time is reduced by 25%, in how many minutes will he complete the same work ?
Solution :
Time taken by Robert to complete the work = 2 hours
If the time is reduced by 25%,
Time taken by Robert to complete the work is
= 75% of 2 hours
= 0.75 ⋅ 2 hours
= 0.75 ⋅ 2 ⋅ 60 minutes
= 90 minutes
So, Robert will take 90 minutes to complete the work.
Apart from the stuff given in this section, if you need any other stuff in math, please use our google custom search here.
Kindly mail your feedback to v4formath@gmail.com
We always appreciate your feedback.
WORD PROBLEMS
Word problems on simple equations
Word problems on linear equations
Word problems on quadratic equations
Area and perimeter word problems
Word problems on direct variation and inverse variation
Word problems on comparing rates
Converting customary units word problems
Converting metric units word problems
Word problems on simple interest
Word problems on compound interest
Word problems on types of angles
Complementary and supplementary angles word problems
Markup and markdown word problems
Word problems on mixed fractions
One step equation word problems
Linear inequalities word problems
Ratio and proportion word problems
Word problems on sets and Venn diagrams
Pythagorean theorem word problems
Percent of a number word problems
Word problems on constant speed
Word problems on average speed
Word problems on sum of the angles of a triangle is 180 degree
OTHER TOPICS
Time, speed and distance shortcuts
Ratio and proportion shortcuts
Domain and range of rational functions
Domain and range of rational functions with holes
Graphing rational functions with holes
Converting repeating decimals in to fractions
Decimal representation of rational numbers
Finding square root using long division
L.C.M method to solve time and work problems
Translating the word problems in to algebraic expressions
Remainder when 2 power 256 is divided by 17
Remainder when 17 power 23 is divided by 16
Sum of all three digit numbers divisible by 6
Sum of all three digit numbers divisible by 7
Sum of all three digit numbers divisible by 8
Sum of all three digit numbers formed using 1, 3, 4
Sum of all three four digit numbers formed with non zero digits
Sum of all three four digit numbers formed using 0, 1, 2, 3
Sum of all three four digit numbers formed using 1, 2, 5, 6
©All rights reserved. onlinemath4all.com
May 22, 22 03:05 AM
Linear Growth and Decay
May 22, 22 01:15 AM
Worksheet on Probability
May 22, 22 01:12 AM
Probability Worksheet