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Question

What value would the following function return for the input x = 95 ? 

function fun (x:integer): integer; Begin

If x > 100 then fun = x - 10

Else fun = fun(fun(x + 11))

End;

(A)89 (C) 91 (B) 90 (D)92

Comments

let f()= fun()

if x=95

f(95) = f(f(106))  as x<100

f(95) = f(97)

similiarly

f(97)=f(98)

.

.

.

f(100) = f(101)

now 101>100

f(101) = 101-10 = 91

so correct ans is C) 91