Fill in the blanks.
Number of women at first is 10% of the adults.
Number of women is then increased to 75%.
- 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 1 = 1 u |
9 x 1 = 9 u |
Change |
+ ? |
No change |
After |
3 x 9 = 27 u |
1 x 9 = 9 u |
(a)
Change percentage into units.
10% =
10100 =
110 75% =
75100 =
34 Fraction of the adults who are men at first
= 1 -
110 =
910 Fraction of the adults who are men in the end
= 1 -
34=
14 Number of men at first and in the end remains the same.
The number of men is the unchanged quantity.
LCM of 9 and 1 = 9
Number of women at first = 1 u
(b)
Number of women in the end = 27 u
(c)
Increase in the number of women
= 27 u - 1 u
= 26 u
(d)
Number of adults in the end
= 27 u + 9 u
= 36 u
Answer(s): (a) 1; (b) 27; (c) 26; (d) 36