Ravi was asked to multiply a rational number by 2/3 by mistake he multiplied the rational number by 2/9.his answer was -16/5 more than the correct answer.find the rational no
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Given:
number by 2/3 by mistake he multiplied the rational number by 2/9.
To find:
The rational number
Solution:
1) Let the rational number be x.
2) Then according to the question then
we get,
- 2/3x = 2/9x + (-16/5)
- 2/3x = 2/9x - 16/5
- 16/5 = 2/9x - 2/3x
- 16/5 = (2-6)/9x
- 16/5 = -4/9x
- x= -36/5
The assumed rational number is -36/5 that is -7.2
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