Question

3:) The average weight of a group of men and women is 70kg. The average weight of the men is
110kg and that of women is 30kg. If the number of men is 2, Find the number of the women.​

Answer 1

2 women

average weight of men = 110

$(110 + 110) \div 2 = 110$

average weight of women = 30

$(30 + 30) \div 2 = 30$

average of total people =70

$(110 + 30) \div 2 = 70$