20. Ravi was asked to multiple a rational nur 2. By mistake he multipl

1.	20. Ravi was asked to multiple a rational nur 2. By mistake he multiplied the manynumber by His answer wasore than the correct answer. Find the ratenumber.
Answer» Let rational number be x Then,x * 2/3 = 2x/3 x * 2/9 = 2x/9 2x/9 - 2x/3 = - 3 1/5 2x(1 - 3)/9 = - 16/5 -4x/9 = - 16/5 x = 16/5 * 9/4 x = 9*4/5 = 36/5 Therefore,Rational number = 36/5

20. Ravi was asked to multiple a rational nur 2. By mistake he multiplied the manynumber by His answer wasore than the correct answer. Find the ratenumber.

Answer»

Let rational number be x

Then,x * 2/3 = 2x/3

x * 2/9 = 2x/9

2x/9 - 2x/3 = - 3 1/5

2x(1 - 3)/9 = - 16/5

-4x/9 = - 16/5

x = 16/5 * 9/4

x = 9*4/5 = 36/5

Therefore,Rational number = 36/5