if each man has 7 wives and each of those wives had 7 kids then its 399
if each man has 1 wife and each of those wives had 7 kids then its 63
its trick wording
if each man has 7 wives and each of those wives had 7 kids then its 399
if each man has 1 wife and each of those wives had 7 kids then its 63
its trick wording