A positive number is 5 times another number. If 21 is added to both the numbers, then one of the new numbers becomes twice the other new number. What are the numbers?
Answers
Answered by
9
Step-by-step explanation:
Given :
A positive number is 5 times another number.
If 21 is added to both the numbers, then one of the new numbers becomes twice the other new number.
To find :
What are the numbers?
Solution :
Let the first number be x, then the other number will be 5x.
According to the question,
=> x + 21 = 5x + 21
One of the number becomes twice the other new number :
=> 2(x + 21) = 5x + 21
=> 2x + 42 = 5x + 21
=> 2x - 5x = 21 - 42
=> -3x = -21
=> 3x = 21
=> x = 21/3
=> x = 7
Hence, the numbers are,
=> x = 7
=> 5x = 5(7) = 35
Answered by
0
Step-by-step explanation:
let the smaller number = x
bigger number =5x ------(we need this)
If 21 is added to both; 5x+21 = 2×(x+21)
5x+21 = 2x+42
5x-2x =42-21
3x=21/3 =
x = 21/3 = 7
so the positive number is = 5×7= 35
Answer is 35
Hope this answer help you!!
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