There are 100 people,
of which 30 are men.
There are 60 more children than women.
- How many children are there?
- How many adults are there?
- How many more children than adults are there?
- How many less women than men are there?
(a)
Number of men = 30
Number of women = 1 u
Number of children = 1 u + 60
Total number of people
= 30 + 1 u + 1 u + 60
= 1 u + 1 u + 30 + 60
= 2 u + 90
2 u + 90 = 100
2 u = 100 - 90
2 u = 10
1 u = 10 ÷ 2 = 5
Number of children
= 1 u + 60
= 5 + 60
= 65
(b)
Number of adults
= 30 + 5
= 35
(c)
Number of more children than adults
= 65 - 35
= 30
(d)
Number of less women than men
= 30 - 5
= 25
Answer(s): (a) 65; (b) 35; (c) 30; (d) 25