There are 38 children, 152 men, and 76 women in the group.
Solution:
Given that group of 266 persons consists of men, woman, and children
Let "c" be the number of children
Given that There are four times as many mens as children
Number of mens = 4(number of children)
number of men = 4c --- eqn 1
And twice as many as woman as children
Number of woman = 2(number of children)
number of woman = 2c ---------- eqn 2
Given there are a group of 266 persons consists of men, woman, and children
number of men + number of woman + number of children = 266
Substitute eqn 1 and eqn 2 in above expression
4c + 2c + c = 266
7c = 266
c = 38
Thus from eqn 1,
number of men = 4c = 4(38) = 152
From eqn 2,
number of woman = 2c = 2(38) = 76
Thus there are 38 children, 152 men, and 76 women in the group.