Question

The sum of two numbers is 80.If one is four times the other,find the numbers
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Answer 1

Step-by-step explanation:

The sum of two number= 80

One of the number=4x

Then the third number=x

_____+_____= 80

4x + x = 80

5x = 80

x = 80/5

x = 16 is the right answer.

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Answer 2

S O L U T I O N :

Given :

The sum of two numbers is 80. If one is four times the other.

Explanation :

Let the two numbers be x & y respectively.

According to the question :

1st case :

➝ x + y = 80............(1)

2nd case :

➝ y = 4x................(2)

now, putting the value of y in equation (1), w get;

➝ x + 4x = 80 [from(1)]

➝ 5x = 80

➝ x = 80/5

➝ x = 16

Putting the value of x in equation (2), we get;

➝ y = 4 × 16

➝ y = 64

Thus,

The Two numbers will be x = 16 & y = 64 .