Q). One of the two number is 5 times another number. If 21 is added to both the numbers, then one of the numbers become twice that of other new number. Find the numbers ?
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Answered by
84
Answer:
Let the numbers be x,y
⟹y=5x
21 is added
The numbers are
y+21,x+21
According to question
y+21=2(x+21)
5x+21=2x+42
5x=2x+21
3x=21
x=7⟹y=35
Answered by
51
Given :
- One of the two number is 5 times another number.
To Find :
- Find the numbers ?
Solution :
- Let us assume :
➣ First number be x.
➣ Second number = 5x.
- 21 is added to both the numbers, then one of the numbers become twice that of other new number.
Adding 21 to both the numbers :
- First number = x + 21
- Second number = 5x + 21
According to the question :
➣ 2(x + 21) = 5x + 21
➣ 2x + 42 = 5x + 21
➣ 42 - 21 = 5x + 2x
➣ 21 = 3x
➣ 21/3 = x
➣ 7 = x
➣ x = 7
We get :
- First number = x = 7
- Second number = 5x = 5(7) = 35
Hence,
- The numbers are 7 & 35.
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