At what time are the hands of clock at 10 minutes between 6 and 7 o’clock?

Both (A) and (B)

Time =   \(\frac{60}{55}\)(5 × H ± distance)  

       =    \(\frac{12}{11}\)(5 × 6  ±  10)   = \(\frac{12}{11}\)    (30 ±  10)

       =    \(\frac{12}{11}\)× 40 = 43\(\frac{7}{11}\)          

       =  \(\frac{12}{11}\) × 20  = \(\frac{240}{11}\) = 21\(\frac{9}{11}\) 

So, correct answer is option (D) Both (a) and (b).