There are 950 people,
of which 50 are men.
There are 50 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 = 50
Number of children = 1 u
Number of women = 1 u + 50
Total number of people
= 50 + 1 u + 1 u + 50
= 1 u + 1 u + 50 + 50
= 2 u + 100
2 u + 100 = 950
2 u = 950 - 100
2 u = 850
1 u = 850 ÷ 2 = 425
Number of children
= 1 u
= 425
(b)
Number of adults
= 50 + 1 u + 50
= 50 + 425 + 50
= 525
(c)
Number of less children than adults
= 525 - 425
= 100
(d)
Number of more women than men
= 1 u + 50 - 50
= 425 + 50 - 50
= 425
Answer(s): (a) 425; (b) 525; (c) 100; (d) 425