Question

A natural number has been divided into two parts in the ratio 7:11. In the difference
of two parts is 20. find the number and the two parts.
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Answer 1

Answer:

Let the Common Multiple Be X

Therefore:-

11x-7x=20

4x=20

x=20/4

x=5

First No.=7x=7*5=35

Second No.=11x=11*5=55

Main Number=35+55=90

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Answer 2

Let the number be x
11x-7x=20
4x=20
X=5

7x=35
11x=55

Difference =20
Lhs=Rhs