Fill in the blanks.
The number of girls is 3 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 + 12
- Number of people = _____ u + 15
(a)
Change X times and more than or less than into units.
The number of girls is 3 more than the boys.
Number of boys = 1 u
Number of girls = 1 u + 3
(b)
Number of children
= 1 u + 1 u + 3
= 2 u + 3
(c)
The number of adults is four times the number of children.
Number of adults
= 4 x (2 u + 3)
= 8 u + 12
(d)
Total number of people
= (2 u + 3) + (8 u + 12)
= 2 u + 8 u + 3 + 12
= 10 u + 15
Answer(s): (a) 3; (b) 3; (c) 8; (d) 10