There are 540 people,
of which 190 are women.
There are 230 less adults than men.
- How many children are there?
- How many adults are there?
- How many less children than adults are there?
- How many more men than women are there?
(a)
Number of women = 190
Number of children = 1 u
Number of men = 1 u + 230
Total number of people
= 190 + 1 u + 1 u + 230
= 1 u + 1 u + 190 + 230
= 2 u + 420
2 u + 420 = 540
2 u = 540 - 420
2 u = 120
1 u = 120 ÷ 2 = 60
Number of children
= 1 u
= 60
(b)
Number of adults
= 190 + 1 u + 230
= 190 + 60 + 230
= 480
(c)
Number of less children than adults
= 480 - 60
= 420
(d)
Number of more men than women
= 1 u + 230 - 190
= 60 + 230 - 190
= 100
Answer(s): (a) 60; (b) 480; (c) 420; (d) 100