A positive number when decreased by 6, is equal to 27 times the reciprocal of the number. The number is.
18
21
9
12
7
Let the number be x, x - 6 = 27×1x
Solving we get x = 9
A natural number, when decreased by 13, equals 140 times its reciprocal. Find the number.
When 17 is added to a positive number, the result is equal to 60times the reciprocal of that number. Find the number.
4 when subtracted from a positive number gives a value equal to 21 times the reciprocal of the number. The number is: