Question

The denominator of a rational no. is twice its numerator. If the numerator is decreased by 3 and the denominator increased by 7, the number obtained is 2/5. Find the rational number.

Answer 1

Answer: 58

Step-by-step explanation:

The denominator of a rational number is

twice its numerator

if the numerator is decreased by 3

and the denominator is increased by 7

the numerator obtained is 2 upon 5

find the rational number​.

Let the numerator be x

and the denominator will be z.

⇒x-3/2x+7=2/5.

x-3/2x+7=2/5.

5(x-3)=2(2x-7)

5x-15=4x-14

x=29

2x=58

Answer 2

Answer:

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Step-by-step explanation:

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