Fill in the blanks.
The number of girls is 4 more than the boys.
The number of adults is four times the number of children.
Let the number of boys be 1 u.
- Number of girls = 1 u + _____
- Number of children = 2 u + _____
- Number of adults = _____ u + 16
- Number of people = _____ u + 20
(a)
Change X times and more than or less than into units.
The number of girls is 4 more than the boys.
Number of boys = 1 u
Number of girls = 1 u + 4
(b)
Number of children
= 1 u + 1 u + 4
= 2 u + 4
(c)
The number of adults is four times the number of children.
Number of adults
= 4 x (2 u + 4)
= 8 u + 16
(d)
Total number of people
= (2 u + 4) + (8 u + 16)
= 2 u + 8 u + 4 + 16
= 10 u + 20
Answer(s): (a) 4; (b) 4; (c) 8; (d) 10