Question

BACKWARD, 5; FORWARD,5.Which of the following statements is true about the above set of instructions?

• A. $n_1=n_2$ provided $n_1\ge 5$
• B. $n_1=n_2$ provided $n_1>0$
• C. $n_2=5$ provided $M>0$
• D. $n_1>n_2$ provided $M>0$

Answer 1

The correct option is A $n_1=n_2$ provided $n_1\ge 5$

BACKWARD, 5; FORWARD, 5 would effectively mean $n_1=n_2$ (in case $n_1\ge 5$) or $n_2=5$ (in case $n_1<5$). The only option that satisfies this is (a).