Questions on Word Problems: Problems on percentages, ratios, and fractions answered by real tutors!

Tutors Answer Your Questions about Percentage-and-ratio-word-problems (FREE)

Question 195254: A 30% solution of barium chloride is mixed with 10 L of water to form a 20% solution. How many liters of original solution did we start with?

Click here to see answer by nerdybill(6958)

Question 195058: Respected sir,
1] A man gains 10% by selling an article for a certain price.If he sells it at double the price,the profit made is ?
plz help me as soon as possible...
thank u.
Click here to see answer by anantha(86)

Question 195885: Evaluate 3/4+1/2
Click here to see answer by jim_thompson5910(28595)

Question 195885: Evaluate 3/4+1/2
Click here to see answer by Alan3354(30993)

Question 195876: Find the LCD then convert each rational expression into an equivalent rational expression with the LCD as the denominator.
5/15, 3/20
Click here to see answer by checkley77(12569)

Question 196247: I am pretty sure that this is the right Algebra i would like help with.
If you don't mind i'd like to ask a question...
If you can tell me a liitle bit about the question... Can you maybe please help me make an Algebra word problem or as my teacher likes to call them (brain teasers) It is where you make up a problem with Algebra, then you have to solve your own problem. But my problem is that I don't know how to make them! So if you could please help me, that would be fantastic! Thank you!
Click here to see answer by stanbon(57347)

Question 196240: Thrifty Parking Garage has 40 parking spaces. Each space can be used by a car or a motorcycle (no trucks). One day when all 40 spaces are in use, the owner walks through the garage and looks at each vehicle. He tells his assistant, "There are 152 wheels in this garage right now." How many motorcycles are in the garage?
Click here to see answer by edjones(7569)

Question 196665: The ratio of rabbits to foxes is 2 to 9. If there are 35 fewer foxes than rabbits, then how many of each are there?
Click here to see answer by vleith(2825)

Question 196822: Patrick is an automobile salesman who receives a salary of $550.00 per week plus a commission of 5 percent on all sales. During a 4 week period he sold $45,500.00 worth of cars. What were Patricks average earnings?
Click here to see answer by Mathtut(3670)

Question 196841: i am having a difficult time with this , help and guidance will be appreciated.
Force on running shoes. The ratio of the force on the shoe soles to the weight of a runner is 3 to 1. What force does a 130-pound jogger exert on the soles of her shoes?
Click here to see answer by Mathtut(3670)

Question 197174: Respected sir,
1] Mary's income is 60%more than Tim's income,& Tim's income is 40% less than Juan's income.What percent of Juan's income is Mary's income ?
plz solve my difficulty...
Regards.
Binita.
Click here to see answer by ptaylor(2048)

Question 197340: At a car dealership,3/10 of the vehicles are trucks, 1/5 are sports cars, and the rest are vans. If there are 90 trucks, how many vans are there?
Click here to see answer by Mathtut(3670)

Question 197374: If the rise is 3/2 and the run is 5, then what is the ratio to the run?
Click here to see answer by solver91311(16885)

Question 197918: how many liters of a 10% saline solution must be added to 4 liters of a 40% saline solution to obtain a 15% saline solution?
Click here to see answer by stanbon(57347)

Question 197931: respectes sir & madum,

In a certain English class, 1/4 of the number of girls is equal to 1/6 of the total number of students. What is the ratio of the number of boys to the number of girls in the class?

thank u.

Click here to see answer by vleith(2825)

Question 198253: respected sir,
1] A student first reduced a certain number by 20% and then increased it again by 20%. If the difference between the last number and the original number was 8, then the original number was:

plz help me to solve this % sum...
thank u...
Click here to see answer by arallie(162)

Question 198491: In a particular year, the amount of salmon in Rock Creek increased by 1,000. What can you do to find 1,000 of a number?
Click here to see answer by Alan3354(30993)

Question 198490: Jenny is filling up a shoebox with her marble collection. The shoebox is 12 inches long by 6 inches wide by 5 inches deep. Each marble takes up 1 cubic inch of space and wieghs 8 grams. When the shoebox is totally full with marbles, how much will it wiegh in kilograms?
Click here to see answer by Alan3354(30993)

Question 198488: Nguyen has deck of playing cards. He spreads out all 54 of the cards on top of a table, and he finds that they exactly cover the table from edge to edge. The table measures 2 and a half feet long by 2 and 1 fourth feet wide. What is the area of each playing card in square inches?
Click here to see answer by checkley77(12569)

Question 198495: A blue whale weighs approximately 100 tons, while a house cat weighs 5 pounds. About how many cats would it take to equal the weight of one blue whale?
Click here to see answer by nerdybill(6958)

Question 198509: Al mows lawns at a rate of 30 square feet per minute, Bo mows 40 square feet per minute, and Cy mows 60 square feet per minute. They accept a job that requires that they mow 6060 square feet of lawn. Al begins mowing at 7:00 A.M., but Bo does not begin for another 15 minutes. Cy begins mowing at 7:45, and they finish together. How long did Bo work?
Click here to see answer by ankor@dixie-net.com(15652)

Question 198492: Angles x and y are complementary. Angle x measures 45 degrees. What is the measure of angle y?
Click here to see answer by nerdybill(6958)

Question 198759: roger wants to make a health drink with 4:1 ratio of water to lemon juice how many cups of lemon juice or water does he need if he wants to use 30 cups
Click here to see answer by josmiceli(9678)

Question 198772: Blake and Ned work for a home remodeling buisness. They are putting the final touches on a home they renovated. Working alone, Blake can paint one room in 8 hours. Ned can paint the smae room in 6 hours. How long will it take them to paint the room if they work together?
Click here to see answer by solver91311(16885)

Question 198837: Jill builds a dog house in 4 hours. Todd builds the same type of dog house in 6 hours. How long will it take them to build a house together?
Click here to see answer by user_dude2008(1861)

Question 199446: The height, h, in metres, of a car above the ground as a Ferris wheel turns can be modeled using the function h=15cos(pi*t/120) + 18.
Estimate a value for the instantaneous rate of change of h at t=20 s (answer is -0.196 m/s). Please show the work involved!!! Thanks in advance!
Click here to see answer by vleith(2825)

Question 199894: Carol puts some green and red unit cubes in a box. The ratio of the number of green cubes to the number of red cubes is 2:1. She adds 12 more red cubes in the box and the ratio becomes 4:5.
a) How many green cubes are there in the box?
b) How many red cubes does Carol have in the end?

Click here to see answer by scott8148(6628)

Question 200528: Jim has 4/6 of a mug of beer. Linda has 5/6 of a mug of beer. Jim said, " You have 25% more than me." Linda said, "You have 20% less than me." What do you think about these statements? Explain.
Click here to see answer by ankor@dixie-net.com(15652)

Question 200389: if 15%(A+B)25%OF(A-B),THEN WHAT PERCENT OF BIS EQUAL TO A
Click here to see answer by RAY100(1637)

Question 200638:
Four firefighters were discussing the number of fires they extinguished for the month of February. Rafael extinguished 25% fewer fires than Louis in February. William extinguished 50% more fires than Rafael. Albert extinguished 20% fewer fires than Rafael and William combined. If Louis extinguished 6 fires per week, how many fires did all four men extinguish during the entire month?
Click here to see answer by rfer(12657)

Question 200760: $4 is 2.5% of what amount?
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Question 200837: You have pure HCL and add it to a mixture that is 40%. You end up with a 55 liter acid solution that is 75%. How much of the 100% HCL did you use?
Click here to see answer by josmiceli(9678)

Question 200874: what is the decimal of 11 over 20 ?
Click here to see answer by stanbon(57347)

Question 201039: How many yards of material from a 24-yard length of cloth remain after 3 pieces, each 3 yards long, and 5 pieces, each 2 yards long, are removed?
A. 2 1/4
B. 4 1/4
C. 4 5/6
D. 10 1/4
E. 10 5/6
So confused.Help me.Please && Thanks
Click here to see answer by josmiceli(9678)

Question 201161: Learning.com bought 117 pizzas at Pizza hut for their party. Each guest ate 1/10 of a pizza and there was no pizza left over, how many guest did they have for the party
Click here to see answer by rfer(12657)

Question 201160: ajax company charges $469 per cord of wood if bill orders 6 6/7 cords what will his cost be?
Click here to see answer by rfer(12657)

Question 201156: frank puelo bought 11,288 acres of land he plans to subdivide the land into parcels of 11 6/7 acres how many parcels of land will he develop?
Click here to see answer by rfer(12657)

Question 201662: A small airplane used 4 3/8 gallons of fuel to fly an 1 1/4 hour trip. How many gallons were used for each hour?
Click here to see answer by RAY100(1637)

Question 201662: A small airplane used 4 3/8 gallons of fuel to fly an 1 1/4 hour trip. How many gallons were used for each hour?
Click here to see answer by stanbon(57347)

Question 201888: What number should be subtracted from both the terms of the ratio 15:19 so as to
make it as 3:4 ?
Click here to see answer by checkley77(12569)

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