A certain number is divided into two parts such that 5 times the first part added to 11 times, the second part makes 7 times the whole. The ratio of the first part to the second part is
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Answer:
A) 2 : 1
Steps of answer.
Let first and second part of the number be x and y, respectively.
Then,
5x+11y=7(x + Y)
=> 11y-7y=7x-5x
=> 4y = 2x
x : y = 2 : 1
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