Question

Tick the most appropriate answer.
A train departs from Delhi railway station at $$21 : 50$$ hours every day. The time shown in your analog watch at the departure will be

Answer 1

Correct option is B. $$9 : 50 \ p.m.$$
There are two formats to measure time. The $$24 \ hr$$ format or the $$12 \ hr$$ format. To convert the $$24 \ hr$$ format to $$12 \ hr$$ format we need to subtract $$12$$ from the $$24 \ hr$$ format when the number exceeds $$12$$. For less than $$12$$ we keep it as it is. For greater than $$12$$ we use $$p.m$$ and for less than $$12$$ we use $$a.m.$$

For $$21:50$$ we need to subtract $$12$$. Therefore in $$12 \ hr$$ format, $$21:50$$ will be, $$9:50 \ p.m.$$ , which is our answer.