MATH PROBLEM ANDI NEED SOLUTIONS
MATH PROBLEM
I NEED SOLUTIONS
1.) How many liters of water must be added to 15 L of a 40% alcohol solution to produce a 25% alcohol solution?
2.) A piggy bank contains 35 coins consisting of 10-centavo and 25 - centavo coins. If the value of the coins in the box is Php 5.90. How many of each kind are there?
3.) One number is trice more than four times another. If the sum of two numbers is 18, what are the numbers?
4.)A man invested Php 180,000; part at 4% and the rest at 6% per year. If he receives an annual income of Php 8,400 from these investments, how much did he invest at 4%?
5.) The length of a rectangle is one more than twice the width. What are the dimensions of the rectangle if the perimeter is 50?
6.) The length of a rectangle is three times its width and its perimeter is 48 m. What are the dimensions of the rectangle?
7.) The sum of the length and the width of a rectangle is 11 centimeter. If the length is decreased by 2 centimeter and the width is doubled, the resulting figure is a square. Find the dimensions of the rectangle.
8.) Two years ago, Maria was thrice as old as Marsha. Six years from now, Maria's age would be four years less than what twice Marsha's age would be by then. How old are Maria and Marsha now?
9.) Two cars start from the same place at the same time and go in opposite directions, one travelling 12 kilometer faster than other. Find the rate of each if they are 324 kilometer apart at the end of 3 hours.
10.) Alice is twice as old as her sister Merlie. Four years ago, she was three times as old as Merlie. How old is Alice?
11.)A rectangular lot has an are of 1,875 square meters. If the length of the lot is 50 meters greater than width. what are the dimensions of the lot?
12.) The difference of two numbers is 12. If thrice the larger is subtracted from seven times the smaller, the answer is -4. What are the numbers?
13.)A man invested Php 250,000 at 5% annual interest and the remainder at 8% annual interest. If the total annual interest is Php 15,200, how much is invested at 8%?
I NEED SOLUTIONS
1.) How many liters of water must be added to 15 L of a 40% alcohol solution to produce a 25% alcohol solution?
2.) A piggy bank contains 35 coins consisting of 10-centavo and 25 - centavo coins. If the value of the coins in the box is Php 5.90. How many of each kind are there?
3.) One number is trice more than four times another. If the sum of two numbers is 18, what are the numbers?
4.)A man invested Php 180,000; part at 4% and the rest at 6% per year. If he receives an annual income of Php 8,400 from these investments, how much did he invest at 4%?
5.) The length of a rectangle is one more than twice the width. What are the dimensions of the rectangle if the perimeter is 50?
6.) The length of a rectangle is three times its width and its perimeter is 48 m. What are the dimensions of the rectangle?
7.) The sum of the length and the width of a rectangle is 11 centimeter. If the length is decreased by 2 centimeter and the width is doubled, the resulting figure is a square. Find the dimensions of the rectangle.
8.) Two years ago, Maria was thrice as old as Marsha. Six years from now, Maria's age would be four years less than what twice Marsha's age would be by then. How old are Maria and Marsha now?
9.) Two cars start from the same place at the same time and go in opposite directions, one travelling 12 kilometer faster than other. Find the rate of each if they are 324 kilometer apart at the end of 3 hours.
10.) Alice is twice as old as her sister Merlie. Four years ago, she was three times as old as Merlie. How old is Alice?
11.)A rectangular lot has an are of 1,875 square meters. If the length of the lot is 50 meters greater than width. what are the dimensions of the lot?
12.) The difference of two numbers is 12. If thrice the larger is subtracted from seven times the smaller, the answer is -4. What are the numbers?
13.)A man invested Php 250,000 at 5% annual interest and the remainder at 8% annual interest. If the total annual interest is Php 15,200, how much is invested at 8%?
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6:39 AM
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