The number is forty-five (45).
Finding one fifth of a number is the same as multiplying the number by 1/5, or 0.2. In this instance, 45 x 0.2 = 9.
It is: 1/5 of 45 = 9
one fifth of 45 is:1/5 x 45 = 45/5= 45 ÷ 5= 9
45 = 9 + 9 + 9 + 9 + 9 = 9 x 5
44
182/45
Nine
1/5 of 45 is nine.
Possibility of two digit no whose sum is 9 18,27,36,45,54,63,72,91 Now add 9 to each no mentioned above 27,36,45,54,63,72,91,100 See after third comma 45 and 54. If you reverse 45 it will be 54. which is 9 more than 45. So original no is 45
the original number could have been anything from 45 to 54
Possibility of two digit no whose sum is 9 18,27,36,45,54,63,72,81 Now add 9 to each no mentioned above 27,36,45,54,63,72,81,90 See after third comma 45 and 54. Reverse of 45 is 54. 54 is 9 more than the no 45. So 45 is original