Fill in the blanks.
Number of women at first is 5% of the adults.
Number of women is then increased to 40%.
- Number of women at first = _____ u
- Number of women in the end = _____ u
- Increase in the number of women = _____ u
- Number of adults in the end = _____ u
|
Women |
Men |
Before |
1 x 3 = 3 u |
19 x 3 = 57 u |
Change |
+ ? |
No change |
After |
2 x 19 = 38 u |
3 x 19 = 57 u |
(a)
Change percentage into units.
5% =
5100 =
120 40% =
40100 =
25 Fraction of the adults who are men at first
= 1 -
120 =
1920 Fraction of the adults who are men in the end
= 1 -
25=
35 Number of men at first and in the end remains the same.
The number of men is the unchanged quantity.
LCM of 19 and 3 = 57
Number of women at first = 3 u
(b)
Number of women in the end = 38 u
(c)
Increase in the number of women
= 38 u - 3 u
= 35 u
(d)
Number of adults in the end
= 38 u + 57 u
= 95 u
Answer(s): (a) 3; (b) 38; (c) 35; (d) 95