There are 600 people,
of which 160 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 = 160
Number of children = 1 u
Number of women = 1 u + 290
Total number of people
= 160 + 1 u + 1 u + 290
= 1 u + 1 u + 160 + 290
= 2 u + 450
2 u + 450 = 600
2 u = 600 - 450
2 u = 150
1 u = 150 ÷ 2 = 75
Number of children
= 1 u
= 75
(b)
Number of adults
= 160 + 1 u + 290
= 160 + 75 + 290
= 525
(c)
Number of less children than adults
= 525 - 75
= 450
(d)
Number of more women than men
= 1 u + 290 - 160
= 75 + 290 - 160
= 205
Answer(s): (a) 75; (b) 525; (c) 450; (d) 205