There are 910 people,
of which 310 are women.
There are 350 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 = 310
Number of children = 1 u
Number of men = 1 u + 350
Total number of people
= 310 + 1 u + 1 u + 350
= 1 u + 1 u + 310 + 350
= 2 u + 660
2 u + 660 = 910
2 u = 910 - 660
2 u = 250
1 u = 250 ÷ 2 = 125
Number of children
= 1 u
= 125
(b)
Number of adults
= 310 + 1 u + 350
= 310 + 125 + 350
= 785
(c)
Number of less children than adults
= 785 - 125
= 660
(d)
Number of more men than women
= 1 u + 350 - 310
= 125 + 350 - 310
= 165
Answer(s): (a) 125; (b) 785; (c) 660; (d) 165