Fill in the blanks.
Number of men at first is 25% of the adults.
Number of men is then increased to 60%.
- 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 2 = 2 u |
3 x 2 = 6 u |
Change |
+ ? |
No change |
After |
3 x 3 = 9 u |
2 x 3 = 6 u |
(a)
Change percentage into units.
25% =
25100 =
14 60% =
60100 =
35 Fraction of the adults who are women at first
= 1 -
14 =
34 Fraction of the adults who are women in the end
= 1 -
35=
25 Number of women at first and in the end remains the same.
The number of women is the unchanged quantity.
LCM of 3 and 2 = 6
Number of men at first = 2 u
(b)
Number of men in the end = 9 u
(c)
Increase in the number of men
= 9 u - 2 u
= 7 u
(d)
Number of adults in the end
= 9 u + 6 u
= 15 u
Answer(s): (a) 2; (b) 9; (c) 7; (d) 15