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

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Question 108132: There are 220 barrels of cement in one shed and 510 barrels in another shed. How many barrels must be transferred from the second to the first shed so that the first shed willo contain two-thirds as much as the second shed? I was thinking that this equation fit: 220+x=2/3(510-x).
Click here to see answer by checkley71(8403)

Question 67800: Say that a town has 1,000 residents,of whom 60% are women and 40% are men.Of the women,40% wear one earring.Half of the rest wear 2 earrings,and half wear none.Of the men,60% wear one earring.Half of the rest wear 2 earrings,and half wear none.How many earrings are worn in all?
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Question 106112: iiijjjydjujkujbuyjjuiiu so what is the percentage of i.
Click here to see answer by BurningFlame_marc(77)

Question 108489: Kit earned 75 points out of 80 possible on her test.
Write the decimal equivalent of this fraction.

Click here to see answer by HyperBrain(694)

Question 108654: on an airplane that is two thirds-full, 20% of the passengers are boys, one -fourth of the passengers are women, one-eighth of the passengers are girls, and there are 68 men. how many seats are on the plane?
Click here to see answer by edjones(7569)

Question 108837: This might sound like a silly question but in algbra what does the sign ln stand for. I have seen it but can't find an explanation for it.
Thank you
Dave
Click here to see answer by Fombitz(13828)

Question 109168: Can someone please help me with this equation?
The museum in Boston estimated that 64% of all visitors came from within the state. On Saturday 2,500 people attended the museum. How many attended the museum from out of state?
Thanks in advance for your help!
Click here to see answer by stanbon(57203)

Question 109169: Can someone please help me with this problem?
The price of a doll increased from $600 to $800. What was the percent of the increase? Round to the nearest tenth percent.
Thanks in advance for your help!
Click here to see answer by stanbon(57203)

Question 109366: One poll reported that 42% of city residents were against building a new civic center. The polling service stated that the poll was accurate to within 2.5%. What is the minimum percent of city residents that oppose the civic center? Thanks
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Question 110133: A bag contains five red balls, three white balls and two green balls. If three balls are selected at random, with replacement, find the probability that the first two are red and third one is green.
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Question 110222: To find the simple interest on a loan for 1 year at 12.5%, multiply the amount of the loan by 0.125. What simple interest will you pay on a loan of $1458.00 at 12.5% for 1 year?
Click here to see answer by stanbon(57203)

Question 110348: A penny is tossed and a die is rolled. What is the probability of tossing a tail and rolling a 4?
Click here to see answer by josmiceli(9645)

Question 110354: The “Cash 5” game in the Virginia Lottery requires that you select 5 different numbers from 34 in order to play the game. If you buy one ticket, what is the probability that you will win?
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Question 110352: You are given a multiple choice test consisting of 10 questions. Each question has 3 choices. If you guess at all of the answers, what is the probability that you will choose the incorrect answer for each question?
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Question 110351: A $100, $50, and $20 prize are to be awarded to three different people. If nine people are being considered for the prizes, how many different arrangements are possible?
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Question 110350: The odds of John winning a marathon are 3:7. What is the probability that John will win his next race?
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Question 110347: A die is tossed. What is the probability of tossing a number between 3 and 6?
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Question 110411: If your class has 15 males and 10 females in it, how many different committees consisting of 3 males and 4 females can be chosen?
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Question 110410: If 65% of the general population has an IQ between 85 and 115, in a school system of 2500 students, how many would you expect to have an IQ in this range?
Click here to see answer by edjones(7569)

Question 110409: In a study of 5000 men who are 60 years old, 3250 were found to be grandfathers. Based on this data, what is the probability of a 60-year-old man being a grandfather?
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Question 110346: In a study of 5000 men who are 60 years old, 3250 were found to be grandfathers. Based on this data, what is the probability of a 60-year-old man being a grandfather?
Click here to see answer by edjones(7569)

Question 110450: A painter uses 1 quart of paint to cover 225 square feet of concrete wall. How many gallons would she need to cover 1800 square feet?
Click here to see answer by checkley71(8403)

Question 110638: Phil needs to practice free throws 7/10 of an hour each day. If he already practiced 3/10 of an hour today. How much longer does he need to practice?
Click here to see answer by josmiceli(9645)

Question 110881: Hello
Joe is working at Big Beefy Burgers. He recently received a salary increase of 3.5%, his new salary is 42,000 a year. What was his salary before the increase?
I solved this question approximately using the check and guess system. I did: 40500* 1.035, then I did: 40550*1.035 then 40570*1.035 then 40580* 1.035. So the approximate answer is 40580, but is there an easier, exact way to answer this question.
Any help would be greatly appreciated as this question just ticks me off. I feel there must be a better way.

Click here to see answer by ankor@dixie-net.com(15622)

Question 111381: If one fourth of a certain number is added to one fifth of the same number, the result equals the sum of 13 and one eighth of the number. Find the number.
Click here to see answer by edjones(7569)

Question 111745: hI!
please help me with this
There are two jars each containing red and white marbles.The ratio of red to white marbles is 7:1 in the first jar and 9:1 in The second jar. There are 90 white marbles in the first jar. If the second jar has twice as many red marbles as the first jar how many white marbles are there in the second jar???
Thanks for any help comming on my way
Click here to see answer by checkley71(8403)

Question 112231: Marc took 3 hours (h) to mow a lawn while Angelina took 150 minutes (min) to mow the same lawn a week earlier. Write the ratio of Marc's time to Angelina's time as a ratio of whole numbers.
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Question 112793: A professor started a project with a group of students, 60% of whom were boys.Due to some unavoidable reasons, six girls couldn't turn up, so the professor had to make some changes in the group. He admitted six girls. In doing so, the percentage of boys in the project increased to 75%. Find the number of boys and girls involved in the project initially.
Click here to see answer by ptaylor(2048)

Question 112882: Lauren's watering can hold 2 and 7/8 gallons of water. She is watering the plants in her garden, which usually need 6 gallons of water. How many times will she need to fill up her plants?
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Question 112919: How much of a 35% alcohol solution shoud be mixed with 2 liters of a 60% alcohol solution to produce a 50% alcohol solution?
Click here to see answer by checkley71(8403)

Question 113412: My teacher gave me this problem in a review packet and I can't figure it out. It's probably very simple but I seem to be missing something. It reads...
There are 8 women for every 3 men at an inspiring teacher conference. If there are 680 more women than men, how many teachers are there total?
Click here to see answer by edjones(7569)

Question 113391: A quantity, 2/3 of it, 1/2 of it, and 1/7 of it, added together, equals 3. What is the quantity?
Click here to see answer by edjones(7569)

Question 113448: Please Help
The ratio of key club members to student councel members is 7 to 9 or 7:9. there are 353 total members. How many key club members are there? I think 154 but not sure. I need the solution to figure this and other similiar problems.
Thanks
Click here to see answer by Fombitz(13828)

Question 113657: The width of a swimming pool is 18.5 ft, and the length is 10.75 ft. Write the ratio of length to width as a ratio of whole numbers.
Click here to see answer by stanbon(57203)

Question 113672: The width of a swimming pool is 18.5 ft, and the length is 10.75 ft. Write the ratio of length to width as ratio of whole numbers.
A) 43/74 B) 5/9 C) 74/43 D)9/5
Click here to see answer by stanbon(57203)

Question 113660: Solve for the unknown
2/3/10 = 1.8/r
Please note the 2 , 3 and 10 are on top of eachother and the 1.8 is on top of the little r.
Click here to see answer by stanbon(57203)

Question 113661: Write the ratio of 4 1/3 to 6 in simplist form.
Click here to see answer by MathLover1(6611)

Question 113664: Ms. Jefferson has been given a loan of $20,000 for 1 year. If the interest charged is $800, what is the interest rate on the loan?
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Question 113663: A new car depreciates an average of 22% in it's first year of use. If the car was worth $16,000 when it was new, what will the car be worth after 1 year?
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Question 113816: one third of a three-digit number whose units digit is x, ten digit is 5 and hundreds digit is three times the units digit
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Question 113816: one third of a three-digit number whose units digit is x, ten digit is 5 and hundreds digit is three times the units digit
Click here to see answer by ankor@dixie-net.com(15622)

Question 113885: In a cafeteria if 20% of the children had hot dogs and the others had pizza, also 8 more children had pizzas than hot dogs, how many children were having lunch?
X = number of students
D - number of students that had hot dogs
P = number of students that had pizza
D = 0.20X
P = 8 + (0.20X)
When I added the two equations above I ended up with 20 but when I tried to use 20 in the equations above it did not work.
Help!
Click here to see answer by Edwin McCravy(8879)

Question 114626: Four brothers decided to buy a stereo that cost $280. Their contributions were in the ratio of 4:2:3:5. What was the largest single contribution in dollars?
Click here to see answer by edjones(7569)

Question 114577: HI!
please help me with this. These type of questions are going to be on my CHAMP MATH CONTEST tomorrow.

A large jug is filled with 45L of apple juice. Nine L are removed and the jug is refilled with water. Then Nine L of the mixture are removed and the jug is refilled with water again. The ratio of water to apple juice in the final mixture is??

thanks for any help coming this way.
Click here to see answer by scott8148(6628)

Older solutions: 1..45, 46..90, 91..135, 136..180, 181..225, 226..270, 271..315, 316..360, 361..405, 406..450, 451..495, 496..540, 541..585, 586..630, 631..675, 676..720, 721..765, 766..810, 811..855, 856..900, 901..945, 946..990, 991..1035, 1036..1080, 1081..1125, 1126..1170, 1171..1215, 1216..1260, 1261..1305, 1306..1350, 1351..1395, 1396..1440, 1441..1485, 1486..1530, 1531..1575, 1576..1620, 1621..1665, 1666..1710, 1711..1755, 1756..1800, 1801..1845, 1846..1890, 1891..1935, 1936..1980, 1981..2025, 2026..2070, 2071..2115, 2116..2160, 2161..2205, 2206..2250, 2251..2295, 2296..2340, 2341..2385, 2386..2430, 2431..2475, 2476..2520, 2521..2565, 2566..2610, 2611..2655, 2656..2700, 2701..2745, 2746..2790, 2791..2835, 2836..2880, 2881..2925, 2926..2970, 2971..3015, 3016..3060, 3061..3105, 3106..3150, 3151..3195, 3196..3240, 3241..3285, 3286..3330, 3331..3375, 3376..3420, 3421..3465, 3466..3510, 3511..3555, 3556..3600, 3601..3645, 3646..3690, 3691..3735, 3736..3780, 3781..3825, 3826..3870, 3871..3915, 3916..3960, 3961..4005, 4006..4050, 4051..4095, 4096..4140, 4141..4185, 4186..4230, 4231..4275, 4276..4320, 4321..4365, 4366..4410, 4411..4455, 4456..4500, 4501..4545, 4546..4590, 4591..4635, 4636..4680, 4681..4725, 4726..4770, 4771..4815, 4816..4860, 4861..4905, 4906..4950, 4951..4995, 4996..5040, 5041..5085, 5086..5130, 5131..5175, 5176..5220