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

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Question 354257: Please please please help. Due tonight. I have done all of the others, but cannot get this one.
How many committees can be formed from a group of 9 doctors of each committee consists of 7 doctors. I must also explain how I ca,e to this conclusion.
Thank-you so much n advance.
Click here to see answer by scott8148(6628)

Question 355236: Please help. Don't know how to construct the equation for this problem:
One can of paint is enough for 3 chairs OR 2 tables. Therefore, 7 cans of paint will be enough for 12 chairs AND how many tables?
a. 4
b. 5
c. 6
d. 7
Click here to see answer by sudhanshu_kmr(1152)

Question 355543: A piece of jewelery costs $78. If the price increases by 12%, what is the new cost?
Click here to see answer by dlh(17)

Question 355613: whats the original price of a bike if the discounted price is $91 and the dicsount is 30% off

Click here to see answer by mananth(12270)

Question 355611: what percentage of numbers between 100 and 999 inclusive have all the three digits same
Click here to see answer by edjones(7569)

Question 355644: A shirt is on sale at a 20% discount. The sales tax is 5%. A new sales clerk simply takes 15% off the original price. Is this correct? Why?
Click here to see answer by mananth(12270)

Question 355725: In a workshop there are 4 kinds of beds, 3 kinds of closets, 2 kinds of shelves and 7
kinds of chairs. In how many ways can a person decorate his room if he wants to buy
in the workshop one shelf, one bed and one of the following: a chair or a closet?
Click here to see answer by Fombitz(13828)

Question 355692: A person salary was increased from $260 to $290 per week. what is the increase in the salary to the nearest percent?

Click here to see answer by nyc_function(2733)

Question 355881: In an election in ehich 4,500 votes were cast ,one candidate recieved 3/5 of the votes. How many votes did the candidate recieve?
Click here to see answer by ewatrrr(10682)

Question 356063: A board that cost six dollars is 9 and 1/4 feet long. One-third of the board is cut off. Now what is the length of the piece cutt off?
Click here to see answer by edjones(7569)

Question 356271: What is 385% as a fraction or a mixed number?
Click here to see answer by ewatrrr(10682)

Question 356271: What is 385% as a fraction or a mixed number?
Click here to see answer by Alan3354(30993)

Question 356204: The price of a stock is down 5% today. What percent increase tomorrow would return
the stock to its original price?
Click here to see answer by Alan3354(30993)

Question 356419: Bo mistakenly divided a number by 5 when Bo should have multiplied it by 5. Find his percent of error.
Thanks
Click here to see answer by edjones(7569)

Question 356748: In a certain jewel shop there are three types of jewels like diamonds ,rubis and emaralands.The ratio of diamonds to rubis is 5:6.The ratio of rubis to emaralands is 8:3.What is the least number of jewels possible.
Click here to see answer by CharlesG2(828)

Question 356733: A product is currently priced at $10. If it is discounted by 10%, the profit margin will be 10%. What is the cost of the product?
Click here to see answer by rfer(12660)

Question 357002: A closing factory sold two used machines for $1200 each. One machine brings 20%
profit; the other 20% loss. How much is total profit or loss?
Click here to see answer by robertb(4012)

Question 357179: the algebraic expression 893.5/(x+14.2) models the success reate for plaintiffs in personal injury suits x years after 1989. The model measures success rate as a percent and is valid only for 1989 through 1992.
A.Find the percentage of cases that resulted in success for the plaintiff in personal injury cases from 1989 through 1992.
B.What happened to the plaintiff's rate of success over this period?
C.If this model is extended into the future, what is a reasonable estimate for the success rate in the year 2000?
Click here to see answer by stanbon(57347)

Question 357295: Two toy stores, A and B, sell Game Boys. The regular price at store A is 80% of
the manufacturer’s suggested retail price. Store B normally does not discount at all.During Christmas season, store A discounts the product by 20% off its regular price.Store B discounts it by 40% off its regular price. Which store offers a better deal?
Click here to see answer by mananth(12270)

Question 357305: How much 20% alcohol solution and 50% alcohol solution must be mixed to get 12 gallons of 30%?

Click here to see answer by ewatrrr(10682)

Question 357360: A sum of money is divided into two parts in the ratio 5:7. If the smaller amount is $200, find the larger amount.
Click here to see answer by ewatrrr(10682)

Question 357595: a garderner expects that 75% of the seeds she plants will produce plants. she wants 45 plants. how many seeds should she plant?
Click here to see answer by ewatrrr(10682)

Question 357798: From a group of 10 women and 5 men, 2 people are selected at random to form a committee. Find the probability that exactly 1 man and 1 woman is selected.

Click here to see answer by nyc_function(2733)

Question 357814: A store bought 10 vases for $15 each from supplier A. It bought 40 vases for $12.5
each from supplier B. Its profit margin is supposed to be 10%. How much should the
selling price for each vase be?
Click here to see answer by mananth(12270)

Question 358395: If two trains are 120 miles apart and are travelling toward each other at constant rate of 30mph and 40mph respectively.How far apart will they be exactly 1 hr before they meet.
Click here to see answer by mananth(12270)

Question 358419: Laura has 20 coins consisting of quarters and dimes. If she has a total of $3.05, how many dimes does she have?

Click here to see answer by mananth(12270)

Question 358419: Laura has 20 coins consisting of quarters and dimes. If she has a total of $3.05, how many dimes does she have?

Click here to see answer by robertb(4012)

Question 358449: If chocolate, nuts and caramel are to be mixed in the ratio 3:5:7 respectively, and 5 tons of chocolate are available, how many tons of the mixture can be made? (Assume there is enough nuts and caramel to use all the chocolate.)
Click here to see answer by checkley77(12569)

Question 358564: A shirt is on sale for $15 and has been marked down 35%. How much was the shirt being sold for before the sale?
Click here to see answer by checkley77(12569)

Question 358816: the mean of a set of numbers is 120. if one number is increased by 300, the mean increases to 135. how many numbers are there in the set?
Click here to see answer by edjones(7569)

Question 358985: A football team has won 10 games and lost 5. If the team wins the remaining games,
they will have won 75% of all the games. How many more games will they play?
Click here to see answer by robertb(4012)

Question 358997: How many four digit numbers begin with odd digit and end with even digit.
Click here to see answer by robertb(4012)

Question 359339: if 1 inch on a map represents 40 miles,than 2.5 inches = ?
Click here to see answer by checkley77(12569)

Question 359419: The mean of a set of numbers is 120. If one number is increased by 300, the mean equals 135. How many numbers are in the set?
Click here to see answer by jrfrunner(365)

Question 359507: the mean of a set of numbers is 120. if one number is increased by 300, the mean increases to 135. how many numbers are in the set?
Click here to see answer by neatmath(300)

Question 359452: the mean of a set of numbers is 120. if one number is increases by 300, the mean increases to 135. how many numbers are in the set?
Click here to see answer by edjones(7569)

Question 359684: I have a quick question, or more a scenario, appreciate any help. Thank you in advance.
A student does a homework assignment that is 50 questions. She gets 48/50 correct. The assignment is only worth 20 points. What is that students grade for the homework assignment based on 20 pt. scale in a percentage form.
thank you again
Click here to see answer by edjones(7569)

Question 359878: There are 4 times as many shrubs as there are trees. Altogether, there are 40 trees and shrubs. How many trees are there? How many shrubs are there?
Click here to see answer by stanbon(57347)

Question 360461: Marcie can walk 8 miles in the same time Frank can walk 6 miles. If Marcie walks 1 mile per hour faster than Frank, then how fast does each person walk?
Click here to see answer by ewatrrr(10682)

Question 360623: A store bought a number of tractors for $800 each. Its regular selling price is $1000.The store decides to discount the price to stimulate sales and to earn a minimum profit of 5%. What is the maximum discount rate?

Click here to see answer by mananth(12270)

Question 360806: The ratio of freshman to sophmores in a drama club is 5:6. There are 18 sophmores in the drama club. How many freshman are there?
Click here to see answer by ewatrrr(10682)

Question 361229: A class of 198 recruits consists of three racial and ethic groups. If 1/3 are black and 1/4 of the remainder Hispanic, how many of the recruits in the class are white?
Click here to see answer by mananth(12270)

Question 361249: one third of students at Central High are seniors. Three fourth of the seniors will go to college next year. What percentage of the students at Central High will go to college next year.
Click here to see answer by ewatrrr(10682)

Question 361488: Samuel had 48 marbles. He lost thirty-seven and a half of them. How many marbles had he left?
Click here to see answer by solver91311(16885)

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