There are 760 people,
of which 130 are women.
There are 310 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 = 130
Number of children = 1 u
Number of men = 1 u + 310
Total number of people
= 130 + 1 u + 1 u + 310
= 1 u + 1 u + 130 + 310
= 2 u + 440
2 u + 440 = 760
2 u = 760 - 440
2 u = 320
1 u = 320 ÷ 2 = 160
Number of children
= 1 u
= 160
(b)
Number of adults
= 130 + 1 u + 310
= 130 + 160 + 310
= 600
(c)
Number of less children than adults
= 600 - 160
= 440
(d)
Number of more men than women
= 1 u + 310 - 130
= 160 + 310 - 130
= 340
Answer(s): (a) 160; (b) 600; (c) 440; (d) 340