MATHS
posted by MILDRED .
Please explain the question below.
The members of a certain family are eager waanderers. All ten of them are constantly on the move in one part of the world or another. One Christmas, by some strange coincidence, they all meet in Cairo, Egypt. As they sat down for dinner, a waiter entered and served 2 grandfathers, 2 grandmothers, 3 fathers, 3 mothers, 3 sons, 3 daughters, 2 mothers in law, 2 fathersinlaw, 1 son inlaw, 1 daughter inlaw, 2 brothers and 2 sisters all ten of them. How many grandparents, parents, daughters?
Thank you

Start with the two fathersinlaw and two mothersinlaw, the couple and enough children that make exactly 10 people.
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