If ‘A # B’ means ‘A is the sister of B’ and ‘A @ B’ means ‘A is the mother of B’, then which of the following expressions means ‘C is the mother of F’?
Answer & explanation
Correct answer: option 4
After checking all the options, we get the answer from option (iv):

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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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