Given the commands below what is the final value of z x 1 D

Given the commands below, what is the final value of z? x = 1 Do z = x*2 X = X + I If x > 4 Then Exit Do Loop

Solution

first iteration

z = 2 *1 = 2

x = 2;

x is less than 4 , so loop continue to execute

second iteration

z = 2*2 =4

x =3;

x is less than 4 , so loop continue to execute

third iteration

z = 2 * 3 =6

x = 4;

x is less than 4 , so loop continue to execute

fourth iteration

z = 2 * 4 =8

x = 5;

x is greater than 4 so execution breaks out of loop

so final value of z = 8