Fill in the blanks.
Number of men at first is 10% of the adults.
Number of men is then increased to 40%.
- Number of men at first = _____ u
- Number of men in the end = _____ u
- Increase in the number of men = _____ u
- Number of adults in the end = _____ u
|
Men |
Women |
Before |
1 x 1 = 1 u |
9 x 1 = 9 u |
Change |
+ ? |
No change |
After |
2 x 3 = 6 u |
3 x 3 = 9 u |
(a)
Change percentage into units.
10% =
10100 =
110 40% =
40100 =
25 Fraction of the adults who are women at first
= 1 -
110 =
910 Fraction of the adults who are women in the end
= 1 -
25=
35 Number of women at first and in the end remains the same.
The number of women is the unchanged quantity.
LCM of 9 and 3 = 9
Number of men at first = 1 u
(b)
Number of men in the end = 6 u
(c)
Increase in the number of men
= 6 u - 1 u
= 5 u
(d)
Number of adults in the end
= 6 u + 9 u
= 15 u
Answer(s): (a) 1; (b) 6; (c) 5; (d) 15