The sum of three numbers is 20. The second number is 4
times the first number , and the sum of the first and third
is8. Find the numbers.
- 7 Answers
- 10225 Views
- I also Faced
- E-Mail Answers
Answers were Sorted based on User's Feedback
Answer / neeraj venu
Three numbers are x , y , z ;
So ,
x + y + z = 20;
4x = y;
x+ z= 8;
therefore ,
8+y=20;
y = 12, x= 3 ,z= 5;
| Is This Answer Correct ? | 17 Yes | 3 No |
Answer / vinod
x,y,z
1: x+y+z=20
2: y=4x
3: x+z=8
so:
x+4x+8-x=20
4x=12 so x=3
y=4*3 so y=12
z=8-x so z=5
| Is This Answer Correct ? | 8 Yes | 3 No |
Answer / dheeraj shandilya
Let the three numbers be x, y, z.
Then A/Q second number is four times the first number .
It means y= 4x
so
x+4x+z =20-------(1)
also x+y =8----------(2)
solving these two equation we will get x=3, y= 4x= 12 and
z= 5.
So the three number will be 3, 12, 5
| Is This Answer Correct ? | 1 Yes | 0 No |
Answer / dheeraj shandilya
In Answer posted above there is a typing mistake. In
equation (2) y should be replaced with z so the equation
(2) became
x+z = 8
Thanks
| Is This Answer Correct ? | 0 Yes | 0 No |
Answer / j
Five more than the number is less than or equal to twice the number5x+less2
| Is This Answer Correct ? | 0 Yes | 0 No |
Answer / j
The sum of the number and 50 is less thanthree times the number
| Is This Answer Correct ? | 0 Yes | 0 No |
Answer / mariaalex007
The nos are 2,8,5......
solution...
x+4y+z=20;
but.. x+z=8;
so..4y+8=20;
so..y+2=10;
so..
y=8;
| Is This Answer Correct ? | 1 Yes | 9 No |
Write a function that takes an unsorted integer array, and returns a three element subset whose sum is zero.
Write a function to efficiently convert a floating point number to a rational number. For example, given 0.125 return "1/8"
Write a function that takes an array of integers and returns that array rotated by N positions. For example, if N=2, given the input array [1, 2, 3, 4, 5, 6] the function should return [5, 6, 1, 2, 3, 4]
Write a function that takes as input a binary tree, and prints out each level of the tree on a newline. For example: a / b c / / d e f will output: a b c d e f
How do you set a global variable inside a function?
If basic HR function like recruitment, training are outsoureced then, why do companies have their own HR department?
Write a python program to count the number of digits in a number?
Write a python program to check if a number is a prime number?
Write a python program to print table of a given number?
What is the output, suppose list1 is [1, 3, 2], what is list1 * 2 ?
Write a python program to check if a string is a palindrome or not?
The sum of three numbers is 20. The second number is 4 times the first number , and the sum of the first and third is8. Find the numbers.
PHP Code 
