If a clock strikes 12 in 33 seconds, it will strike 6 in how many seconds?

At the angle the hands of a clock are inclined at 15 minutes past 5?

What is the angle between the two hands of the clock at 8:24 pm?

If the two hands in a clock are 3 minutes divisions apart, then the angle between is

What will be the acute angle between hands of a clock at 2 : 30?

In 16 minutes, the minute had gains over the hour hand by

Find the value of $$ {1\over{2×5}}+{1\over {5×8}}+{1\over {8 × 11}}+......{1\over {23 × 26}}=?$$

Find the value of $$ \sqrt{20+\sqrt{29-\sqrt{12+\sqrt{19-\sqrt{9}}}}}$$.