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 81581: how many cubic centimeters of a 25% antibotic solution should be added to 10 cubic centimetrs of a 60% antibiotic solution in order to get a 30% antibiotic solution?
Click here to see answer by scott8148(6628)

Question 82179: Which is an exampleof a direct variation equation?
A. Y=6x+4
B. s=a+cp
C. s=hm
D. T=m/k
Click here to see answer by stanbon(57222)

Question 82756: 1/a-b+ 2/b-a+ 3/a-b+ 4/b-a+ 5/a-b+ 6/b-a+ 7/a-b+ 8/b-a= ?/a-b
I think the ? mark would be 9.
Click here to see answer by scott8148(6628)

Question 83013: If 5/8 of the children in a school are boys, what is the ratio of boys to girls?

Click here to see answer by funmath(2925)

Question 83014: A man and a woman share a bingo prize of $1,000.00 between them in the ratio 1:4. The woman shares her part between herself, her mother and her daughter in the ratio 2:1:1. How much does her daughter recieve?
Click here to see answer by josmiceli(9649)

Question 82752: i need to write a proportion that indicates that 50% of a number is 17.
I also need to find two integers whose sum is 12 and whose product is a maximum.

Click here to see answer by ankor@dixie-net.com(15624)

Question 83011: Divide $400.00 in the ratio 2:5 : 5:8.
Click here to see answer by josmiceli(9649)

Question 83010: Divide 180 kg in the ratio 1:2 : 3:4.
Click here to see answer by scott8148(6628)

Question 83008: When $143.00 is divided in the ratio 2:4:5, what is the difference between the largest share and the smallest share?
Click here to see answer by scott8148(6628)

Question 83359: the ratio of two integers is 5:3. if the sum of the two integers is no more than 75, find the greatest pair of such integers.
i know that n + b is less than or equal to 75, but i forget how to do this kind of problem. thank you so much!
Click here to see answer by bucky(2189)

Question 83408: American Products plans to lay off 10% of its employees in its aerospace dividion and 15% of its employees in its agricultural divisions. If altogether 12% if the 3000 employees in these two divisions will be laid off, then how many employees are in each division?
Click here to see answer by ptaylor(2048)

Question 83516: Leading men. Bob hope was born 2 years after Cark Gable and 2 years before Henry Fonda. In 1951, after all three of the had their birthdays, the sum of their ages was 144. In what years were they born?

Click here to see answer by Edwin McCravy(8880)

Question 83519: y+1/2 = -1/3(x+1/2)
solve for y
Click here to see answer by stanbon(57222)

Question 83515: Consecutive even intergers. Find four consecutive even intergers whose sum is 340.

Click here to see answer by stanbon(57222)

Question 83514: Adjusting the saddle. The saddle Height on a bicycle should be 109% of the riders inside leg measurement L. See the figure on the next page Write an equation expressing the fact that the saddle height for Brenda is 36 in.
Click here to see answer by stanbon(57222)

Question 83522: ) High risk funds of the $50,000 that Natasha pocketed on her last real estate deal, 20,000 went to charity. She invested part of the remainder in Dreyfus New Leaders Fund with an annual yield of 16% and the rest in Templton Growth fund with an annual yield of 25% if she made $6060 on these investments in one year, then how much did she invest in each fund?
Click here to see answer by stanbon(57222)

Question 83849: FORMULA
In 1975 the population of the Earth was approximately 4 billion and doubling every
35 years. The formula for the population P in year Y for this doubling rate is
P (in billions) -4 - 2( y-1975)-35
QUESTION
82. Social science. What will the population of the United States be in 2025 if this growth rate continues?

Click here to see answer by stanbon(57222)

Question 83891: A rope is square root of 250 units long. The rope is cut into two pieces, so that the lengths of the pieces are in the ratio 2:3. What is the length fo the longer piece expressed in simplest radical form? Thanks alot.
Click here to see answer by Nate(3500)

Question 84467: American Products plans to lay off 10% of its employees in its aerospace division and 15% of its employees in its agricultural division. If altogether 12% of the 3000 employees in these two divisions will be laid off, then how many employees are in each division?
Click here to see answer by ptaylor(2048)

Question 84659: Kevin earned $165 intrest for 1 year on an investment of $1500. At the same rate, what amount of interest would be earned by an investment of $2500?
Click here to see answer by liz_gcmama(8)

Question 84610: The last week of a month a car dealership sold 12 cars. A new sales promotion came out the first week of the next month and the sold 19 cars that week. What was the percent increase in sales from the last week of the previous month compared to the first week of the next month?
Click here to see answer by liz_gcmama(8)

Question 84693: A customer pays $1100 in state taxes on a newly purchased car. What is the value of the car if state taxes are 8.9% of the value?

Click here to see answer by checkley75(3666)

Question 85394: Adam tried to compute the average of his 7 test scores. He mistakenly divided the correct sum of all of his test scores by 6, which yielded 84. What is Adam's correct average test score?
Click here to see answer by checkley75(3666)

Question 85439: dear tutor,please answer,
(this question is based on unitary method)
52 packets with 12 pencils each,cost Rs 499.20.find the cost of 65 packets of 10 pencils each.
Click here to see answer by Edwin McCravy(8880)

Question 85573: A back yard has dimensions 2 2/3 (fraction) yards by 3 1/2 (fraction) yards. what is teh area of the back yard in square yards (yd^2)?
Click here to see answer by stanbon(57222)

Question 85573: A back yard has dimensions 2 2/3 (fraction) yards by 3 1/2 (fraction) yards. what is teh area of the back yard in square yards (yd^2)?
Click here to see answer by leor84(1)

Question 85723: Jim has sold a hand-carved wooden statue for $670, making a 35% profit. How much did it cost Jim to make the statue?
Click here to see answer by checkley75(3666)

Question 85852: How many milliliters of alcohol must be added to 200 milliliters of a 25% iodine solution to make a 10% iodine solution
Click here to see answer by ankor@dixie-net.com(15624)

Question 85923: -9/2 + 3/4 =
Click here to see answer by praseenakos@yahoo.com(507)

Question 86903: Please help. I cannot find a sample formula to solve this problem.
It is estimated that 5% of rebuilt alternators do not last through the 90−day warranty period. If a parts store had 6 bad alternators returned during the year, how many did they sell?
Click here to see answer by tutorcecilia(2152)

Question 87093: Solve the following equation for A : 2A/3 = 8 + 4A
Click here to see answer by checkley75(3666)

Question 87521: Solve each problem by using a proportion.
Oil and gas. An outboard motor calls for a fuel mixture that has a gasoline-to-oil ratio of 50 to 1. How many pints of oil should be added to 6 gallons of gasoline?
Click here to see answer by stanbon(57222)

Question 87610: Please i need help with this problem:
Find the ratio of 9.6 to 8.
Click here to see answer by rapaljer(4667)

Question 87594: Find the ratio of 9.6 to 8.
Click here to see answer by SandySharma(35)

Question 87642: my daughter is learning fractions in 6th grade. The confusion starts during word problems. In some cases the fraction is inversed and then multiplied and in some its taken directly. I too fail to explain it - as their teacher has not given the rule when to invert the fraction and when not to. Please help - her exams are near.
Click here to see answer by pkgupta_mathstutor@yahoo.co.in(2)

Question 87664: Hi Please help,
A store is having a "2/5 off sale" and a gift is selling for $275.00. What is the original price of the gift?
Thank you in advance

Click here to see answer by stanbon(57222)

Question 87822: The total receipts for 900 tickets were 95000. If students paid 75php per ticket, and non-students paid 125php per ticket, how many student-tickets were sold?
Click here to see answer by checkley75(3666)

Question 88173: I had 14 Leases in June and 0 Leases for May. What is my percentage of increase for June over May?
How do I figure this?
Thank You
Click here to see answer by rapaljer(4667)

Question 88279: American Products plans to lay off 10% of it's aerospace division, and 15% of its agriculture division. Altogether 12% of its 3000 employees will be laid off. How many employees are in each division?
Click here to see answer by checkley75(3666)

Question 88395: A chemist has 400 ml of solution that is 21% acid. How many ml of acid are in the solution?
Is the following set of numbers a perfect triple 7,24,25?
Is the rate 1/4 cup of butter/4 eggs equivalent to the rate 3 cups of butter/48 eggs?
Click here to see answer by stanbon(57222)

Question 88434: Find the median; 1,4,9,15,25,36
Find the mode; 41,43,56,67,69,72
Find the mode; 9,18,10,9,9,10,8
A sales person drove 238,159,87,163,198 miles on a 5 day trip. What was the mean number of miles driven per day?
The following scores were recorded on a 200 point final exam 193,185,163,186,192,135,158,174,188,172,168,183,195,165,183
A) Find the mean final examination score
B) Find the median final examination score
C) Is the mean or median a more useful representative of the final examination scores?
Click here to see answer by jim_thompson5910(28476)

Question 88441: At one Kennel, 11/18 of the dogs are small, 1/9 are medium size, and the rest are large. What fraction of the dogs are large?
Click here to see answer by stanbon(57222)

Question 88441: At one Kennel, 11/18 of the dogs are small, 1/9 are medium size, and the rest are large. What fraction of the dogs are large?
Click here to see answer by Earlsdon(6287)

Question 88440: A woman has an estate of $10,000. She leaves 2/5 to a charity. Of the remainder, 2/3 goes to her son. How much does her son get?
Click here to see answer by stanbon(57222)

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