Question

if 11 is subtracted from half of a no, the results is 4

Answer 1

30 is the number. ...........

Answer 2

Let the number be x.

Half of number = (1/2)x.

According to question:-
(1/2)x - 11 = 4
(1/2)x = 4+11
(1/2)x = 15
x = 15×2
x = 30

So the number is 30.

Hope it helps.