There are 460 people,
of which 40 are men.
There are 200 less adults than women.
- How many children are there?
- How many adults are there?
- How many less children than adults are there?
- How many more women than men are there?
(a)
Number of men = 40
Number of children = 1 u
Number of women = 1 u + 200
Total number of people
= 40 + 1 u + 1 u + 200
= 1 u + 1 u + 40 + 200
= 2 u + 240
2 u + 240 = 460
2 u = 460 - 240
2 u = 220
1 u = 220 ÷ 2 = 110
Number of children
= 1 u
= 110
(b)
Number of adults
= 40 + 1 u + 200
= 40 + 110 + 200
= 350
(c)
Number of less children than adults
= 350 - 110
= 240
(d)
Number of more women than men
= 1 u + 200 - 40
= 110 + 200 - 40
= 270
Answer(s): (a) 110; (b) 350; (c) 240; (d) 270