If L × M means that L is the mother of M, L - M means that L is the father of M, L ÷ M means that L is the sister of M, then which of the following expression shows that P is the father of R?

P - Q ÷ R

After checking all the options, we get the answer from option (ii): 

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Please note:

  l   ⇒ Vertical line shown "generation gap".

 =  ⇒ Double lines shown "relation of spouse" 

—  ⇒ Horizontal line shown "relation in same generation other than spouse".

     ⇒ Rectangular box shown " Male".

     ⇒ Circular box shown " Female".

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