Question

. Evaluate the following expression in c++ : 100/20 < = 10 – 5 + 100% 5 – 20

Answer 1

The evaluation of the given expression results in 0, which represents 'False'.

Explanation:

Given expression is: 100/20 <= 10 - 5 + 100% 5 - 20

The operators present in this expression is [/, <=, -, +, %]

By operating precedence, the priorities will be:

1. / and % (modulus gives remainder) will have the same priority. [left to right]

2. + and - will have the same priority. [left to right]

3. Atlast, <=. [left to right]

The evaluation will be done as follow:

100/20 <= 10 - 5 + 100% 5 - 20 ⇒ 5 <= 10 - 5 + 100% 5 - 20

                                                  ⇒ 5 <= 10 - 5 + 0 - 20

                                                  ⇒ 5 <= 5 + 0 - 20

                                                  ⇒ 5 <= 5 - 20

                                                  ⇒ 5 <= -15

As 5 <= -15 is False, the output will be 0.

Therefore, 100/20 <= 10 - 5 + 100% 5 - 20 = 0

Here, 0 is a boolean value that represents 'false'.            

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Answer 2

Step-by-step explanation:

\begin{gathered}\boxed{\begin{array}{cccc}\bf x & \bf y \\ \frac{\qquad \qquad \qquad \qquad}{} & \frac{\qquad \qquad \qquad \qquad}{} \\ \sf 0 & \sf - 2.5 \\ \\ \sf 5 & \sf 0 \end{array}} \\ \end{gathered}