Fill in the blanks.
The number of girls is 10 less than the number of boys.
The number of adults is thrice the number of girls.
Let the number of girls be 1 u.
- Number of boys = 1 u + _____
- Number of children = 2 u + _____
- Number of adults = _____ u
- Number of people = _____ u + 10
(a)
Change X times and more than or less than into units.
Number of girls = 1 u
The number of girls is 10 more than the number of boys.
Number of boys = 1 u + 10
(b)
Number of children
= 1 u + 1 u + 10
= 2 u + 10
(c)
The number of adults is thrice the number of girls.
Number of adults
= 3 x 1 u
= 3 u
(d)
Total number of people
= 2 u + 10 + 3 u
= 2 u + 3 u + 10
= 5 u + 10
Answer(s): (a) 10; (b) 10; (c) 3 ; (d) 5