Question

Evaluate : 13 ÷ [ (-2) + 1 ] ​

Answer 1

Answer:

The given expression is

=27−[18−{16−(5−

4−1

)}]

=27−[18−{16−(5−3)}] (removing bar of vinculum)

=27−[18−{16−2}] (removing round brackets)

=27−[18−14] (removing curly brackets)

=27−4 (removing square brackets)

=23

Hence, 27−[18−{16−(5−4−1)}]=23