The question is asking if an infant 10 months old needs a ticket.
Typically, air travel regulations require children over the age of two to have their own ticket. For infants under the age of two, it’s usually possible for them to ride on someone else’s lap without a separate ticket being required, although this depends on the airline and flight policies.
It would be best to check with your preferred airline or consult with a travel agent who is familiar with air travel regulations to determine specific requirements.