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When 30% of a no. y is subtracted from x...

When `30%` of a no. y is subtracted from x it become 310 and when `50%` of is added to x it becomes 550. Find ratio of x to y.

A

A)`5 : 3`

B

B)`4 : 3`

C

C)`2 : 1`

D

D)`7 : 6`

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The correct Answer is:
B
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