There are 390 people,
of which 60 are men.
There are 290 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 = 60
Number of children = 1 u
Number of women = 1 u + 290
Total number of people
= 60 + 1 u + 1 u + 290
= 1 u + 1 u + 60 + 290
= 2 u + 350
2 u + 350 = 390
2 u = 390 - 350
2 u = 40
1 u = 40 ÷ 2 = 20
Number of children
= 1 u
= 20
(b)
Number of adults
= 60 + 1 u + 290
= 60 + 20 + 290
= 370
(c)
Number of less children than adults
= 370 - 20
= 350
(d)
Number of more women than men
= 1 u + 290 - 60
= 20 + 290 - 60
= 250
Answer(s): (a) 20; (b) 370; (c) 350; (d) 250