Question 488415: 1.How many pounds of water must be evaporated from 50 lbs of a 3% salt solution so that the remaining solution will be a salt?
2.A man is three times as old as his son.Four years ago he was four times as old as his son was at the time.How old is the son?
6.Two children are balanced on a seesaw One of them weighing 40 lbs at from the fulcrum.How far from the fulcrum on the other side must the other child sit if he weigs 60 lbs?
7.In two years a boy will be three-fourths as old as his sister.Two years ago he was two-thirds as old as she.How old is the boy now?
8.If the sum of three consecutive even numbers is 42,what is the largest number?
9.A tank can be filled by two hoses in 17 and ½ minutes.If just one hose it requires 42 min to fill the tank.How much time is required to fill the tank using the other hose alone?
10.Two children weighing 65 lbs and 45 lbs respectively are on opposite ends of an 11-foot board.Where must the fulcrum be placed if the board is to be in equilibrium.
o 11.A motor boat went 70 miles in 4 hours when traveling at full speed upstream on a river whose current flows at the rate of 6 miles per hour .How fast can the boat travel in still water?
12.How long will it workers A and B ,together ,to finished a job which can be done by A alone in 5 days and by B alone in 3 days?
13.Find the exact interest of P3000 at 4% for 219 days?
14.The altitude of a triangle is 4m longer than the base.If its area is 126 square meter,find the length of the altitude.
15.A wallet contains 290.00 in P1 and P5 denomination.If there are 62 coins in all ,how many P5-coins are there?
16.In a race ,the first prize will be $5 greater than the second prize and the second will be $4 greater than the third.The total prize money is $52.What is the amount of the first prize?
17.The tens digit of a certain number is 4 more than the unit digit.Find the integer if it is seven times as large as the sum of its digit.
20.A student has scores of 74,78,65 on three examinations .What score is needed on a fourth exam for the student to earn an average score of 80.
Answer by solver91311(24713)   (Show Source):
You can put this solution on YOUR website!
No. We are not doing your entire test/quiz/assignment for you. This is a site where people who are struggling with mathematics come for help to learn. This is NOT a site where you dump your assignment for someone else to do so that you can become a vegetable in front of a video game or any other equally inane time wasting activity.
Read the rules for posting. Then read them again. Especially the ones that talk about 1 problem per post, and showing your work.
John
My calculator said it, I believe it, that settles it
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